Home / 10,371.78-15,557.85-2,580.62

Finding the Fourth Proportional to 10,371.78, 15,557.85 and 2,580.62

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Solution

The fourth proportional to 10,371.78, 15,557.85 and 2,580.62 is: 3,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.78 : 15,557.85 = 2,580.62 : x
  2. Step 2: Convert to fraction form
    10,371.78/15,557.85 = 2,580.62/x
  3. Step 3: Cross multiply
    10,371.78x = 15,557.85 × 2,580.62
  4. Step 4: Simplify right side
    10,371.78x = 40,148,821.08
  5. Step 5: Solve for x
    x = 40,148,821.08/10,371.78
  6. Step 6: Final answer
    x = 3,870.97

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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.