Home / 12,045.40-18,062.70-5,468.20

Finding the Fourth Proportional to 12,045.40, 18,062.70 and 5,468.20

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Solution

The fourth proportional to 12,045.40, 18,062.70 and 5,468.20 is: 8,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.40 : 18,062.70 = 5,468.20 : x
  2. Step 2: Convert to fraction form
    12,045.40/18,062.70 = 5,468.20/x
  3. Step 3: Cross multiply
    12,045.40x = 18,062.70 × 5,468.20
  4. Step 4: Simplify right side
    12,045.40x = 98,770,456.14
  5. Step 5: Solve for x
    x = 98,770,456.14/12,045.40
  6. Step 6: Final answer
    x = 8,199.85

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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.