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Finding the Fourth Proportional to 8,655.48, 12,983.17 and 4,955.10

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Solution

The fourth proportional to 8,655.48, 12,983.17 and 4,955.10 is: 7,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.48 : 12,983.17 = 4,955.10 : x
  2. Step 2: Convert to fraction form
    8,655.48/12,983.17 = 4,955.10/x
  3. Step 3: Cross multiply
    8,655.48x = 12,983.17 × 4,955.10
  4. Step 4: Simplify right side
    8,655.48x = 64,332,905.67
  5. Step 5: Solve for x
    x = 64,332,905.67/8,655.48
  6. Step 6: Final answer
    x = 7,432.62

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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.