Home / 15,963.85-22,022.49-12,402.69

Finding the Fourth Proportional to 15,963.85, 22,022.49 and 12,402.69

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Solution

The fourth proportional to 15,963.85, 22,022.49 and 12,402.69 is: 17,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.85 : 22,022.49 = 12,402.69 : x
  2. Step 2: Convert to fraction form
    15,963.85/22,022.49 = 12,402.69/x
  3. Step 3: Cross multiply
    15,963.85x = 22,022.49 × 12,402.69
  4. Step 4: Simplify right side
    15,963.85x = 273,138,116.50
  5. Step 5: Solve for x
    x = 273,138,116.50/15,963.85
  6. Step 6: Final answer
    x = 17,109.79

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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.