Home / 10,387.09-15,580.67-2,595.90

Finding the Fourth Proportional to 10,387.09, 15,580.67 and 2,595.90

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Solution

The fourth proportional to 10,387.09, 15,580.67 and 2,595.90 is: 3,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.09 : 15,580.67 = 2,595.90 : x
  2. Step 2: Convert to fraction form
    10,387.09/15,580.67 = 2,595.90/x
  3. Step 3: Cross multiply
    10,387.09x = 15,580.67 × 2,595.90
  4. Step 4: Simplify right side
    10,387.09x = 40,445,861.25
  5. Step 5: Solve for x
    x = 40,445,861.25/10,387.09
  6. Step 6: Final answer
    x = 3,893.86

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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.