Home / 18,815.88-25,965.18-10,432.20

Finding the Fourth Proportional to 18,815.88, 25,965.18 and 10,432.20

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Solution

The fourth proportional to 18,815.88, 25,965.18 and 10,432.20 is: 14,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.88 : 25,965.18 = 10,432.20 : x
  2. Step 2: Convert to fraction form
    18,815.88/25,965.18 = 10,432.20/x
  3. Step 3: Cross multiply
    18,815.88x = 25,965.18 × 10,432.20
  4. Step 4: Simplify right side
    18,815.88x = 270,873,950.80
  5. Step 5: Solve for x
    x = 270,873,950.80/18,815.88
  6. Step 6: Final answer
    x = 14,396.03

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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.