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Finding the Fourth Proportional to 10,082.40, 15,116.40 and 5,701.20

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Solution

The fourth proportional to 10,082.40, 15,116.40 and 5,701.20 is: 8,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.40 : 15,116.40 = 5,701.20 : x
  2. Step 2: Convert to fraction form
    10,082.40/15,116.40 = 5,701.20/x
  3. Step 3: Cross multiply
    10,082.40x = 15,116.40 × 5,701.20
  4. Step 4: Simplify right side
    10,082.40x = 86,181,619.68
  5. Step 5: Solve for x
    x = 86,181,619.68/10,082.40
  6. Step 6: Final answer
    x = 8,547.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.