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Finding the Fourth Proportional to 16,145.86, 22,281.86 and 9,072.14

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Solution

The fourth proportional to 16,145.86, 22,281.86 and 9,072.14 is: 12,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,145.86 : 22,281.86 = 9,072.14 : x
  2. Step 2: Convert to fraction form
    16,145.86/22,281.86 = 9,072.14/x
  3. Step 3: Cross multiply
    16,145.86x = 22,281.86 × 9,072.14
  4. Step 4: Simplify right side
    16,145.86x = 202,144,153.38
  5. Step 5: Solve for x
    x = 202,144,153.38/16,145.86
  6. Step 6: Final answer
    x = 12,519.88

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Half scale
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Double scale
Find fourth proportional to 16,146.86, 22,283.24 and 9,073.14
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.