Home / 10,381.88-15,572.81-3,456.38

Finding the Fourth Proportional to 10,381.88, 15,572.81 and 3,456.38

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Solution

The fourth proportional to 10,381.88, 15,572.81 and 3,456.38 is: 5,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.88 : 15,572.81 = 3,456.38 : x
  2. Step 2: Convert to fraction form
    10,381.88/15,572.81 = 3,456.38/x
  3. Step 3: Cross multiply
    10,381.88x = 15,572.81 × 3,456.38
  4. Step 4: Simplify right side
    10,381.88x = 53,825,479.80
  5. Step 5: Solve for x
    x = 53,825,479.80/10,381.88
  6. Step 6: Final answer
    x = 5,184.56

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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.