Home / 9,112.28-13,668.42-6,520.28

Finding the Fourth Proportional to 9,112.28, 13,668.42 and 6,520.28

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Solution

The fourth proportional to 9,112.28, 13,668.42 and 6,520.28 is: 9,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.28 : 13,668.42 = 6,520.28 : x
  2. Step 2: Convert to fraction form
    9,112.28/13,668.42 = 6,520.28/x
  3. Step 3: Cross multiply
    9,112.28x = 13,668.42 × 6,520.28
  4. Step 4: Simplify right side
    9,112.28x = 89,121,925.56
  5. Step 5: Solve for x
    x = 89,121,925.56/9,112.28
  6. Step 6: Final answer
    x = 9,780.42

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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.