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Finding the Fourth Proportional to 7,909.59, 10,915.18 and 4,553.05

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Solution

The fourth proportional to 7,909.59, 10,915.18 and 4,553.05 is: 6,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.59 : 10,915.18 = 4,553.05 : x
  2. Step 2: Convert to fraction form
    7,909.59/10,915.18 = 4,553.05/x
  3. Step 3: Cross multiply
    7,909.59x = 10,915.18 × 4,553.05
  4. Step 4: Simplify right side
    7,909.59x = 49,697,360.30
  5. Step 5: Solve for x
    x = 49,697,360.30/7,909.59
  6. Step 6: Final answer
    x = 6,283.18

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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.