Home / 13,011.13-19,414.49-12,217.66

Finding the Fourth Proportional to 13,011.13, 19,414.49 and 12,217.66

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Solution

The fourth proportional to 13,011.13, 19,414.49 and 12,217.66 is: 18,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.13 : 19,414.49 = 12,217.66 : x
  2. Step 2: Convert to fraction form
    13,011.13/19,414.49 = 12,217.66/x
  3. Step 3: Cross multiply
    13,011.13x = 19,414.49 × 12,217.66
  4. Step 4: Simplify right side
    13,011.13x = 237,199,582.87
  5. Step 5: Solve for x
    x = 237,199,582.87/13,011.13
  6. Step 6: Final answer
    x = 18,230.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.