Home / 17,947.40-24,767.15-9,989.61

Finding the Fourth Proportional to 17,947.40, 24,767.15 and 9,989.61

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Solution

The fourth proportional to 17,947.40, 24,767.15 and 9,989.61 is: 13,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,947.40 : 24,767.15 = 9,989.61 : x
  2. Step 2: Convert to fraction form
    17,947.40/24,767.15 = 9,989.61/x
  3. Step 3: Cross multiply
    17,947.40x = 24,767.15 × 9,989.61
  4. Step 4: Simplify right side
    17,947.40x = 247,414,119.36
  5. Step 5: Solve for x
    x = 247,414,119.36/17,947.40
  6. Step 6: Final answer
    x = 13,785.52

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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.