Home / 18,924.06-28,401.21-11,139.42

Finding the Fourth Proportional to 18,924.06, 28,401.21 and 11,139.42

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Solution

The fourth proportional to 18,924.06, 28,401.21 and 11,139.42 is: 16,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.06 : 28,401.21 = 11,139.42 : x
  2. Step 2: Convert to fraction form
    18,924.06/28,401.21 = 11,139.42/x
  3. Step 3: Cross multiply
    18,924.06x = 28,401.21 × 11,139.42
  4. Step 4: Simplify right side
    18,924.06x = 316,373,006.70
  5. Step 5: Solve for x
    x = 316,373,006.70/18,924.06
  6. Step 6: Final answer
    x = 16,718.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.