Home / 18,722.41-28,074.20-6,238.06

Finding the Fourth Proportional to 18,722.41, 28,074.20 and 6,238.06

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Solution

The fourth proportional to 18,722.41, 28,074.20 and 6,238.06 is: 9,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.41 : 28,074.20 = 6,238.06 : x
  2. Step 2: Convert to fraction form
    18,722.41/28,074.20 = 6,238.06/x
  3. Step 3: Cross multiply
    18,722.41x = 28,074.20 × 6,238.06
  4. Step 4: Simplify right side
    18,722.41x = 175,128,419.28
  5. Step 5: Solve for x
    x = 175,128,419.28/18,722.41
  6. Step 6: Final answer
    x = 9,353.95

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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.