Home / 10,159.76-15,239.28-3,585.80

Finding the Fourth Proportional to 10,159.76, 15,239.28 and 3,585.80

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Solution

The fourth proportional to 10,159.76, 15,239.28 and 3,585.80 is: 5,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.76 : 15,239.28 = 3,585.80 : x
  2. Step 2: Convert to fraction form
    10,159.76/15,239.28 = 3,585.80/x
  3. Step 3: Cross multiply
    10,159.76x = 15,239.28 × 3,585.80
  4. Step 4: Simplify right side
    10,159.76x = 54,644,934.03
  5. Step 5: Solve for x
    x = 54,644,934.03/10,159.76
  6. Step 6: Final answer
    x = 5,378.57

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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.