Home / 12,161.53-18,234.98-4,757.16

Finding the Fourth Proportional to 12,161.53, 18,234.98 and 4,757.16

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Solution

The fourth proportional to 12,161.53, 18,234.98 and 4,757.16 is: 7,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.53 : 18,234.98 = 4,757.16 : x
  2. Step 2: Convert to fraction form
    12,161.53/18,234.98 = 4,757.16/x
  3. Step 3: Cross multiply
    12,161.53x = 18,234.98 × 4,757.16
  4. Step 4: Simplify right side
    12,161.53x = 86,746,717.46
  5. Step 5: Solve for x
    x = 86,746,717.46/12,161.53
  6. Step 6: Final answer
    x = 7,132.88

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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.