Home / 18,119.12-24,981.23-11,734.43

Finding the Fourth Proportional to 18,119.12, 24,981.23 and 11,734.43

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Solution

The fourth proportional to 18,119.12, 24,981.23 and 11,734.43 is: 16,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.12 : 24,981.23 = 11,734.43 : x
  2. Step 2: Convert to fraction form
    18,119.12/24,981.23 = 11,734.43/x
  3. Step 3: Cross multiply
    18,119.12x = 24,981.23 × 11,734.43
  4. Step 4: Simplify right side
    18,119.12x = 293,140,399.18
  5. Step 5: Solve for x
    x = 293,140,399.18/18,119.12
  6. Step 6: Final answer
    x = 16,178.52

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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.