Home / 12,156.38-18,240.05-6,962.25

Finding the Fourth Proportional to 12,156.38, 18,240.05 and 6,962.25

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Solution

The fourth proportional to 12,156.38, 18,240.05 and 6,962.25 is: 10,446.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.38 : 18,240.05 = 6,962.25 : x
  2. Step 2: Convert to fraction form
    12,156.38/18,240.05 = 6,962.25/x
  3. Step 3: Cross multiply
    12,156.38x = 18,240.05 × 6,962.25
  4. Step 4: Simplify right side
    12,156.38x = 126,991,805.52
  5. Step 5: Solve for x
    x = 126,991,805.52/12,156.38
  6. Step 6: Final answer
    x = 10,446.52

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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.