Home / 15,780.91-23,669.61-5,648.88

Finding the Fourth Proportional to 15,780.91, 23,669.61 and 5,648.88

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Solution

The fourth proportional to 15,780.91, 23,669.61 and 5,648.88 is: 8,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.91 : 23,669.61 = 5,648.88 : x
  2. Step 2: Convert to fraction form
    15,780.91/23,669.61 = 5,648.88/x
  3. Step 3: Cross multiply
    15,780.91x = 23,669.61 × 5,648.88
  4. Step 4: Simplify right side
    15,780.91x = 133,706,803.43
  5. Step 5: Solve for x
    x = 133,706,803.43/15,780.91
  6. Step 6: Final answer
    x = 8,472.70

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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.