Home / 10,153.26-15,192.98-8,381.79

Finding the Fourth Proportional to 10,153.26, 15,192.98 and 8,381.79

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Solution

The fourth proportional to 10,153.26, 15,192.98 and 8,381.79 is: 12,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.26 : 15,192.98 = 8,381.79 : x
  2. Step 2: Convert to fraction form
    10,153.26/15,192.98 = 8,381.79/x
  3. Step 3: Cross multiply
    10,153.26x = 15,192.98 × 8,381.79
  4. Step 4: Simplify right side
    10,153.26x = 127,344,367.83
  5. Step 5: Solve for x
    x = 127,344,367.83/10,153.26
  6. Step 6: Final answer
    x = 12,542.21

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1.5x scale

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.