Home / 25,140.57-37,679.41-12,663.73

Finding the Fourth Proportional to 25,140.57, 37,679.41 and 12,663.73

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Solution

The fourth proportional to 25,140.57, 37,679.41 and 12,663.73 is: 18,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.57 : 37,679.41 = 12,663.73 : x
  2. Step 2: Convert to fraction form
    25,140.57/37,679.41 = 12,663.73/x
  3. Step 3: Cross multiply
    25,140.57x = 37,679.41 × 12,663.73
  4. Step 4: Simplify right side
    25,140.57x = 477,161,874.80
  5. Step 5: Solve for x
    x = 477,161,874.80/25,140.57
  6. Step 6: Final answer
    x = 18,979.76

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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.