Home / 10,159.92-15,242.58-3,139.62

Finding the Fourth Proportional to 10,159.92, 15,242.58 and 3,139.62

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Solution

The fourth proportional to 10,159.92, 15,242.58 and 3,139.62 is: 4,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.92 : 15,242.58 = 3,139.62 : x
  2. Step 2: Convert to fraction form
    10,159.92/15,242.58 = 3,139.62/x
  3. Step 3: Cross multiply
    10,159.92x = 15,242.58 × 3,139.62
  4. Step 4: Simplify right side
    10,159.92x = 47,855,909.02
  5. Step 5: Solve for x
    x = 47,855,909.02/10,159.92
  6. Step 6: Final answer
    x = 4,710.26

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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.