Home / 10,101.26-15,114.82-8,431.24

Finding the Fourth Proportional to 10,101.26, 15,114.82 and 8,431.24

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Solution

The fourth proportional to 10,101.26, 15,114.82 and 8,431.24 is: 12,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.26 : 15,114.82 = 8,431.24 : x
  2. Step 2: Convert to fraction form
    10,101.26/15,114.82 = 8,431.24/x
  3. Step 3: Cross multiply
    10,101.26x = 15,114.82 × 8,431.24
  4. Step 4: Simplify right side
    10,101.26x = 127,436,674.98
  5. Step 5: Solve for x
    x = 127,436,674.98/10,101.26
  6. Step 6: Final answer
    x = 12,615.92

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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.