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Finding the Fourth Proportional to 11,432.80, 17,116.80 and 10,266.40

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Solution

The fourth proportional to 11,432.80, 17,116.80 and 10,266.40 is: 15,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.80 : 17,116.80 = 10,266.40 : x
  2. Step 2: Convert to fraction form
    11,432.80/17,116.80 = 10,266.40/x
  3. Step 3: Cross multiply
    11,432.80x = 17,116.80 × 10,266.40
  4. Step 4: Simplify right side
    11,432.80x = 175,727,915.52
  5. Step 5: Solve for x
    x = 175,727,915.52/11,432.80
  6. Step 6: Final answer
    x = 15,370.51

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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.