Home / 10,631.80-15,947.70-7,132.60

Finding the Fourth Proportional to 10,631.80, 15,947.70 and 7,132.60

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Solution

The fourth proportional to 10,631.80, 15,947.70 and 7,132.60 is: 10,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.80 : 15,947.70 = 7,132.60 : x
  2. Step 2: Convert to fraction form
    10,631.80/15,947.70 = 7,132.60/x
  3. Step 3: Cross multiply
    10,631.80x = 15,947.70 × 7,132.60
  4. Step 4: Simplify right side
    10,631.80x = 113,748,565.02
  5. Step 5: Solve for x
    x = 113,748,565.02/10,631.80
  6. Step 6: Final answer
    x = 10,698.90

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Similar ratio
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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.