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Finding the Fourth Proportional to 8,765.33, 13,154.97 and 4,607.78

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Solution

The fourth proportional to 8,765.33, 13,154.97 and 4,607.78 is: 6,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.33 : 13,154.97 = 4,607.78 : x
  2. Step 2: Convert to fraction form
    8,765.33/13,154.97 = 4,607.78/x
  3. Step 3: Cross multiply
    8,765.33x = 13,154.97 × 4,607.78
  4. Step 4: Simplify right side
    8,765.33x = 60,615,159.17
  5. Step 5: Solve for x
    x = 60,615,159.17/8,765.33
  6. Step 6: Final answer
    x = 6,915.34

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Why These Related Problems?

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