Home / 18,275.42-25,211.84-10,722.18

Finding the Fourth Proportional to 18,275.42, 25,211.84 and 10,722.18

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Solution

The fourth proportional to 18,275.42, 25,211.84 and 10,722.18 is: 14,791.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.42 : 25,211.84 = 10,722.18 : x
  2. Step 2: Convert to fraction form
    18,275.42/25,211.84 = 10,722.18/x
  3. Step 3: Cross multiply
    18,275.42x = 25,211.84 × 10,722.18
  4. Step 4: Simplify right side
    18,275.42x = 270,325,886.61
  5. Step 5: Solve for x
    x = 270,325,886.61/18,275.42
  6. Step 6: Final answer
    x = 14,791.77

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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.