Home / 10,381.72-15,572.50-2,590.48

Finding the Fourth Proportional to 10,381.72, 15,572.50 and 2,590.48

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Solution

The fourth proportional to 10,381.72, 15,572.50 and 2,590.48 is: 3,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.72 : 15,572.50 = 2,590.48 : x
  2. Step 2: Convert to fraction form
    10,381.72/15,572.50 = 2,590.48/x
  3. Step 3: Cross multiply
    10,381.72x = 15,572.50 × 2,590.48
  4. Step 4: Simplify right side
    10,381.72x = 40,340,249.80
  5. Step 5: Solve for x
    x = 40,340,249.80/10,381.72
  6. Step 6: Final answer
    x = 3,885.70

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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.