Home / 16,870.14-23,280.68-9,316.96

Finding the Fourth Proportional to 16,870.14, 23,280.68 and 9,316.96

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Solution

The fourth proportional to 16,870.14, 23,280.68 and 9,316.96 is: 12,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.14 : 23,280.68 = 9,316.96 : x
  2. Step 2: Convert to fraction form
    16,870.14/23,280.68 = 9,316.96/x
  3. Step 3: Cross multiply
    16,870.14x = 23,280.68 × 9,316.96
  4. Step 4: Simplify right side
    16,870.14x = 216,905,129.42
  5. Step 5: Solve for x
    x = 216,905,129.42/16,870.14
  6. Step 6: Final answer
    x = 12,857.34

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Double scale
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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.