Home / 15,942.39-22,000.38-8,868.75

Finding the Fourth Proportional to 15,942.39, 22,000.38 and 8,868.75

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Solution

The fourth proportional to 15,942.39, 22,000.38 and 8,868.75 is: 12,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.39 : 22,000.38 = 8,868.75 : x
  2. Step 2: Convert to fraction form
    15,942.39/22,000.38 = 8,868.75/x
  3. Step 3: Cross multiply
    15,942.39x = 22,000.38 × 8,868.75
  4. Step 4: Simplify right side
    15,942.39x = 195,115,870.13
  5. Step 5: Solve for x
    x = 195,115,870.13/15,942.39
  6. Step 6: Final answer
    x = 12,238.81

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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.