Home / 12,251.46-16,887.42-9,660.12

Finding the Fourth Proportional to 12,251.46, 16,887.42 and 9,660.12

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Solution

The fourth proportional to 12,251.46, 16,887.42 and 9,660.12 is: 13,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.46 : 16,887.42 = 9,660.12 : x
  2. Step 2: Convert to fraction form
    12,251.46/16,887.42 = 9,660.12/x
  3. Step 3: Cross multiply
    12,251.46x = 16,887.42 × 9,660.12
  4. Step 4: Simplify right side
    12,251.46x = 163,134,503.69
  5. Step 5: Solve for x
    x = 163,134,503.69/12,251.46
  6. Step 6: Final answer
    x = 13,315.52

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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.