Home / 10,342.55-15,513.90-2,947

Finding the Fourth Proportional to 10,342.55, 15,513.90 and 2,947

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Solution

The fourth proportional to 10,342.55, 15,513.90 and 2,947 is: 4,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.55 : 15,513.90 = 2,947 : x
  2. Step 2: Convert to fraction form
    10,342.55/15,513.90 = 2,947/x
  3. Step 3: Cross multiply
    10,342.55x = 15,513.90 × 2,947
  4. Step 4: Simplify right side
    10,342.55x = 45,719,463.30
  5. Step 5: Solve for x
    x = 45,719,463.30/10,342.55
  6. Step 6: Final answer
    x = 4,420.52

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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.