Home / 14,894.11-20,540.16-10,121.21

Finding the Fourth Proportional to 14,894.11, 20,540.16 and 10,121.21

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Solution

The fourth proportional to 14,894.11, 20,540.16 and 10,121.21 is: 13,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.11 : 20,540.16 = 10,121.21 : x
  2. Step 2: Convert to fraction form
    14,894.11/20,540.16 = 10,121.21/x
  3. Step 3: Cross multiply
    14,894.11x = 20,540.16 × 10,121.21
  4. Step 4: Simplify right side
    14,894.11x = 207,891,272.79
  5. Step 5: Solve for x
    x = 207,891,272.79/14,894.11
  6. Step 6: Final answer
    x = 13,957.95

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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.