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Finding the Fourth Proportional to 8,663.12, 12,932.01 and 7,612.17

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Solution

The fourth proportional to 8,663.12, 12,932.01 and 7,612.17 is: 11,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.12 : 12,932.01 = 7,612.17 : x
  2. Step 2: Convert to fraction form
    8,663.12/12,932.01 = 7,612.17/x
  3. Step 3: Cross multiply
    8,663.12x = 12,932.01 × 7,612.17
  4. Step 4: Simplify right side
    8,663.12x = 98,440,707.06
  5. Step 5: Solve for x
    x = 98,440,707.06/8,663.12
  6. Step 6: Final answer
    x = 11,363.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.