Home / 18,522.42-25,555.71-10,965.43

Finding the Fourth Proportional to 18,522.42, 25,555.71 and 10,965.43

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Solution

The fourth proportional to 18,522.42, 25,555.71 and 10,965.43 is: 15,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.42 : 25,555.71 = 10,965.43 : x
  2. Step 2: Convert to fraction form
    18,522.42/25,555.71 = 10,965.43/x
  3. Step 3: Cross multiply
    18,522.42x = 25,555.71 × 10,965.43
  4. Step 4: Simplify right side
    18,522.42x = 280,229,349.11
  5. Step 5: Solve for x
    x = 280,229,349.11/18,522.42
  6. Step 6: Final answer
    x = 15,129.20

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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.