Home / 14,947.28-20,626.32-8,658.56

Finding the Fourth Proportional to 14,947.28, 20,626.32 and 8,658.56

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Solution

The fourth proportional to 14,947.28, 20,626.32 and 8,658.56 is: 11,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.28 : 20,626.32 = 8,658.56 : x
  2. Step 2: Convert to fraction form
    14,947.28/20,626.32 = 8,658.56/x
  3. Step 3: Cross multiply
    14,947.28x = 20,626.32 × 8,658.56
  4. Step 4: Simplify right side
    14,947.28x = 178,594,229.30
  5. Step 5: Solve for x
    x = 178,594,229.30/14,947.28
  6. Step 6: Final answer
    x = 11,948.28

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Double scale
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Similar ratio
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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.