Home / 15,186.92-20,949.16-9,132.96

Finding the Fourth Proportional to 15,186.92, 20,949.16 and 9,132.96

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Solution

The fourth proportional to 15,186.92, 20,949.16 and 9,132.96 is: 12,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.92 : 20,949.16 = 9,132.96 : x
  2. Step 2: Convert to fraction form
    15,186.92/20,949.16 = 9,132.96/x
  3. Step 3: Cross multiply
    15,186.92x = 20,949.16 × 9,132.96
  4. Step 4: Simplify right side
    15,186.92x = 191,327,840.31
  5. Step 5: Solve for x
    x = 191,327,840.31/15,186.92
  6. Step 6: Final answer
    x = 12,598.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.