Home / 8,838.30-13,257.45-7,412.70

Finding the Fourth Proportional to 8,838.30, 13,257.45 and 7,412.70

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Solution

The fourth proportional to 8,838.30, 13,257.45 and 7,412.70 is: 11,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.30 : 13,257.45 = 7,412.70 : x
  2. Step 2: Convert to fraction form
    8,838.30/13,257.45 = 7,412.70/x
  3. Step 3: Cross multiply
    8,838.30x = 13,257.45 × 7,412.70
  4. Step 4: Simplify right side
    8,838.30x = 98,273,499.62
  5. Step 5: Solve for x
    x = 98,273,499.62/8,838.30
  6. Step 6: Final answer
    x = 11,119.05

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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.