Home / 9,439.04-13,025.84-5,190.38

Finding the Fourth Proportional to 9,439.04, 13,025.84 and 5,190.38

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Solution

The fourth proportional to 9,439.04, 13,025.84 and 5,190.38 is: 7,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.04 : 13,025.84 = 5,190.38 : x
  2. Step 2: Convert to fraction form
    9,439.04/13,025.84 = 5,190.38/x
  3. Step 3: Cross multiply
    9,439.04x = 13,025.84 × 5,190.38
  4. Step 4: Simplify right side
    9,439.04x = 67,609,031.78
  5. Step 5: Solve for x
    x = 67,609,031.78/9,439.04
  6. Step 6: Final answer
    x = 7,162.70

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Half scale
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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.