Home / 9,149.03-12,618.70-7,875.08

Finding the Fourth Proportional to 9,149.03, 12,618.70 and 7,875.08

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Solution

The fourth proportional to 9,149.03, 12,618.70 and 7,875.08 is: 10,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.03 : 12,618.70 = 7,875.08 : x
  2. Step 2: Convert to fraction form
    9,149.03/12,618.70 = 7,875.08/x
  3. Step 3: Cross multiply
    9,149.03x = 12,618.70 × 7,875.08
  4. Step 4: Simplify right side
    9,149.03x = 99,373,169.53
  5. Step 5: Solve for x
    x = 99,373,169.53/9,149.03
  6. Step 6: Final answer
    x = 10,861.61

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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.