Home / 12,160.67-18,234.74-5,581.13

Finding the Fourth Proportional to 12,160.67, 18,234.74 and 5,581.13

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Solution

The fourth proportional to 12,160.67, 18,234.74 and 5,581.13 is: 8,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.67 : 18,234.74 = 5,581.13 : x
  2. Step 2: Convert to fraction form
    12,160.67/18,234.74 = 5,581.13/x
  3. Step 3: Cross multiply
    12,160.67x = 18,234.74 × 5,581.13
  4. Step 4: Simplify right side
    12,160.67x = 101,770,377.24
  5. Step 5: Solve for x
    x = 101,770,377.24/12,160.67
  6. Step 6: Final answer
    x = 8,368.82

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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.