Home / 18,211.19-25,131.38-10,255.95

Finding the Fourth Proportional to 18,211.19, 25,131.38 and 10,255.95

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Solution

The fourth proportional to 18,211.19, 25,131.38 and 10,255.95 is: 14,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.19 : 25,131.38 = 10,255.95 : x
  2. Step 2: Convert to fraction form
    18,211.19/25,131.38 = 10,255.95/x
  3. Step 3: Cross multiply
    18,211.19x = 25,131.38 × 10,255.95
  4. Step 4: Simplify right side
    18,211.19x = 257,746,125.43
  5. Step 5: Solve for x
    x = 257,746,125.43/18,211.19
  6. Step 6: Final answer
    x = 14,153.18

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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.