Home / 18,777.52-25,882.68-12,725.74

Finding the Fourth Proportional to 18,777.52, 25,882.68 and 12,725.74

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Solution

The fourth proportional to 18,777.52, 25,882.68 and 12,725.74 is: 17,540.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.52 : 25,882.68 = 12,725.74 : x
  2. Step 2: Convert to fraction form
    18,777.52/25,882.68 = 12,725.74/x
  3. Step 3: Cross multiply
    18,777.52x = 25,882.68 × 12,725.74
  4. Step 4: Simplify right side
    18,777.52x = 329,376,256.18
  5. Step 5: Solve for x
    x = 329,376,256.18/18,777.52
  6. Step 6: Final answer
    x = 17,540.99

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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.