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Finding the Fourth Proportional to 10,874.53, 15,011.43 and 7,342.53

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Solution

The fourth proportional to 10,874.53, 15,011.43 and 7,342.53 is: 10,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.53 : 15,011.43 = 7,342.53 : x
  2. Step 2: Convert to fraction form
    10,874.53/15,011.43 = 7,342.53/x
  3. Step 3: Cross multiply
    10,874.53x = 15,011.43 × 7,342.53
  4. Step 4: Simplify right side
    10,874.53x = 110,221,875.12
  5. Step 5: Solve for x
    x = 110,221,875.12/10,874.53
  6. Step 6: Final answer
    x = 10,135.78

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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.