Home / 7,425.90-10,249.11-4,239.18

Finding the Fourth Proportional to 7,425.90, 10,249.11 and 4,239.18

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Solution

The fourth proportional to 7,425.90, 10,249.11 and 4,239.18 is: 5,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.90 : 10,249.11 = 4,239.18 : x
  2. Step 2: Convert to fraction form
    7,425.90/10,249.11 = 4,239.18/x
  3. Step 3: Cross multiply
    7,425.90x = 10,249.11 × 4,239.18
  4. Step 4: Simplify right side
    7,425.90x = 43,447,822.13
  5. Step 5: Solve for x
    x = 43,447,822.13/7,425.90
  6. Step 6: Final answer
    x = 5,850.85

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Half scale
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Double scale
Find fourth proportional to 7,426.90, 10,250.49 and 4,240.18
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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.