Home / 10,159.34-15,202.07-8,387.87

Finding the Fourth Proportional to 10,159.34, 15,202.07 and 8,387.87

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Solution

The fourth proportional to 10,159.34, 15,202.07 and 8,387.87 is: 12,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.34 : 15,202.07 = 8,387.87 : x
  2. Step 2: Convert to fraction form
    10,159.34/15,202.07 = 8,387.87/x
  3. Step 3: Cross multiply
    10,159.34x = 15,202.07 × 8,387.87
  4. Step 4: Simplify right side
    10,159.34x = 127,512,986.89
  5. Step 5: Solve for x
    x = 127,512,986.89/10,159.34
  6. Step 6: Final answer
    x = 12,551.31

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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.