Home / 18,722.53-28,074.39-6,238.18

Finding the Fourth Proportional to 18,722.53, 28,074.39 and 6,238.18

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Solution

The fourth proportional to 18,722.53, 28,074.39 and 6,238.18 is: 9,354.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.53 : 28,074.39 = 6,238.18 : x
  2. Step 2: Convert to fraction form
    18,722.53/28,074.39 = 6,238.18/x
  3. Step 3: Cross multiply
    18,722.53x = 28,074.39 × 6,238.18
  4. Step 4: Simplify right side
    18,722.53x = 175,133,098.21
  5. Step 5: Solve for x
    x = 175,133,098.21/18,722.53
  6. Step 6: Final answer
    x = 9,354.14

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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.