Home / 16,770.85-23,143.31-9,217.18

Finding the Fourth Proportional to 16,770.85, 23,143.31 and 9,217.18

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Solution

The fourth proportional to 16,770.85, 23,143.31 and 9,217.18 is: 12,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770.85 : 23,143.31 = 9,217.18 : x
  2. Step 2: Convert to fraction form
    16,770.85/23,143.31 = 9,217.18/x
  3. Step 3: Cross multiply
    16,770.85x = 23,143.31 × 9,217.18
  4. Step 4: Simplify right side
    16,770.85x = 213,316,054.07
  5. Step 5: Solve for x
    x = 213,316,054.07/16,770.85
  6. Step 6: Final answer
    x = 12,719.45

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Double scale
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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.