Home / 15,982.80-22,046.76-12,440.40

Finding the Fourth Proportional to 15,982.80, 22,046.76 and 12,440.40

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Solution

The fourth proportional to 15,982.80, 22,046.76 and 12,440.40 is: 17,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.80 : 22,046.76 = 12,440.40 : x
  2. Step 2: Convert to fraction form
    15,982.80/22,046.76 = 12,440.40/x
  3. Step 3: Cross multiply
    15,982.80x = 22,046.76 × 12,440.40
  4. Step 4: Simplify right side
    15,982.80x = 274,270,513.10
  5. Step 5: Solve for x
    x = 274,270,513.10/15,982.80
  6. Step 6: Final answer
    x = 17,160.35

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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.