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Finding the Fourth Proportional to 8,654.79, 11,952.38 and 7,457.34

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Solution

The fourth proportional to 8,654.79, 11,952.38 and 7,457.34 is: 10,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.79 : 11,952.38 = 7,457.34 : x
  2. Step 2: Convert to fraction form
    8,654.79/11,952.38 = 7,457.34/x
  3. Step 3: Cross multiply
    8,654.79x = 11,952.38 × 7,457.34
  4. Step 4: Simplify right side
    8,654.79x = 89,132,961.47
  5. Step 5: Solve for x
    x = 89,132,961.47/8,654.79
  6. Step 6: Final answer
    x = 10,298.69

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1.5x scale

Why These Related Problems?

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