Home / 13,389.50-20,062.33-8,126.12

Finding the Fourth Proportional to 13,389.50, 20,062.33 and 8,126.12

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Solution

The fourth proportional to 13,389.50, 20,062.33 and 8,126.12 is: 12,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.50 : 20,062.33 = 8,126.12 : x
  2. Step 2: Convert to fraction form
    13,389.50/20,062.33 = 8,126.12/x
  3. Step 3: Cross multiply
    13,389.50x = 20,062.33 × 8,126.12
  4. Step 4: Simplify right side
    13,389.50x = 163,028,930.90
  5. Step 5: Solve for x
    x = 163,028,930.90/13,389.50
  6. Step 6: Final answer
    x = 12,175.88

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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.