Home / 14,609.28-20,160.72-8,321.52

Finding the Fourth Proportional to 14,609.28, 20,160.72 and 8,321.52

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Solution

The fourth proportional to 14,609.28, 20,160.72 and 8,321.52 is: 11,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.28 : 20,160.72 = 8,321.52 : x
  2. Step 2: Convert to fraction form
    14,609.28/20,160.72 = 8,321.52/x
  3. Step 3: Cross multiply
    14,609.28x = 20,160.72 × 8,321.52
  4. Step 4: Simplify right side
    14,609.28x = 167,767,834.69
  5. Step 5: Solve for x
    x = 167,767,834.69/14,609.28
  6. Step 6: Final answer
    x = 11,483.65

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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.