Home / 14,894.32-20,540.42-10,121.39

Finding the Fourth Proportional to 14,894.32, 20,540.42 and 10,121.39

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Solution

The fourth proportional to 14,894.32, 20,540.42 and 10,121.39 is: 13,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.32 : 20,540.42 = 10,121.39 : x
  2. Step 2: Convert to fraction form
    14,894.32/20,540.42 = 10,121.39/x
  3. Step 3: Cross multiply
    14,894.32x = 20,540.42 × 10,121.39
  4. Step 4: Simplify right side
    14,894.32x = 207,897,498.88
  5. Step 5: Solve for x
    x = 207,897,498.88/14,894.32
  6. Step 6: Final answer
    x = 13,958.18

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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.