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Finding the Fourth Proportional to 11,098.65, 15,301.85 and 7,915.58

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Solution

The fourth proportional to 11,098.65, 15,301.85 and 7,915.58 is: 10,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,098.65 : 15,301.85 = 7,915.58 : x
  2. Step 2: Convert to fraction form
    11,098.65/15,301.85 = 7,915.58/x
  3. Step 3: Cross multiply
    11,098.65x = 15,301.85 × 7,915.58
  4. Step 4: Simplify right side
    11,098.65x = 121,122,901.74
  5. Step 5: Solve for x
    x = 121,122,901.74/11,098.65
  6. Step 6: Final answer
    x = 10,913.30

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