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Finding the Fourth Proportional to 7,102.66, 10,654.47 and 5,177.86

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Solution

The fourth proportional to 7,102.66, 10,654.47 and 5,177.86 is: 7,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.66 : 10,654.47 = 5,177.86 : x
  2. Step 2: Convert to fraction form
    7,102.66/10,654.47 = 5,177.86/x
  3. Step 3: Cross multiply
    7,102.66x = 10,654.47 × 5,177.86
  4. Step 4: Simplify right side
    7,102.66x = 55,167,354.03
  5. Step 5: Solve for x
    x = 55,167,354.03/7,102.66
  6. Step 6: Final answer
    x = 7,767.14

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1.5x scale

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.