Home / 10,660.16-14,712.39-8,864.55

Finding the Fourth Proportional to 10,660.16, 14,712.39 and 8,864.55

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Solution

The fourth proportional to 10,660.16, 14,712.39 and 8,864.55 is: 12,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.16 : 14,712.39 = 8,864.55 : x
  2. Step 2: Convert to fraction form
    10,660.16/14,712.39 = 8,864.55/x
  3. Step 3: Cross multiply
    10,660.16x = 14,712.39 × 8,864.55
  4. Step 4: Simplify right side
    10,660.16x = 130,418,716.77
  5. Step 5: Solve for x
    x = 130,418,716.77/10,660.16
  6. Step 6: Final answer
    x = 12,234.21

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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.