Home / 15,320.97-22,869.65-13,143.69

Finding the Fourth Proportional to 15,320.97, 22,869.65 and 13,143.69

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Solution

The fourth proportional to 15,320.97, 22,869.65 and 13,143.69 is: 19,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320.97 : 22,869.65 = 13,143.69 : x
  2. Step 2: Convert to fraction form
    15,320.97/22,869.65 = 13,143.69/x
  3. Step 3: Cross multiply
    15,320.97x = 22,869.65 × 13,143.69
  4. Step 4: Simplify right side
    15,320.97x = 300,591,622.87
  5. Step 5: Solve for x
    x = 300,591,622.87/15,320.97
  6. Step 6: Final answer
    x = 19,619.62

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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.