Home / 12,337.24-17,139.51-12,221.94

Finding the Fourth Proportional to 12,337.24, 17,139.51 and 12,221.94

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Solution

The fourth proportional to 12,337.24, 17,139.51 and 12,221.94 is: 16,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,337.24 : 17,139.51 = 12,221.94 : x
  2. Step 2: Convert to fraction form
    12,337.24/17,139.51 = 12,221.94/x
  3. Step 3: Cross multiply
    12,337.24x = 17,139.51 × 12,221.94
  4. Step 4: Simplify right side
    12,337.24x = 209,478,062.85
  5. Step 5: Solve for x
    x = 209,478,062.85/12,337.24
  6. Step 6: Final answer
    x = 16,979.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.