Home / 18,919.56-28,396.85-9,566.18

Finding the Fourth Proportional to 18,919.56, 28,396.85 and 9,566.18

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Solution

The fourth proportional to 18,919.56, 28,396.85 and 9,566.18 is: 14,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.56 : 28,396.85 = 9,566.18 : x
  2. Step 2: Convert to fraction form
    18,919.56/28,396.85 = 9,566.18/x
  3. Step 3: Cross multiply
    18,919.56x = 28,396.85 × 9,566.18
  4. Step 4: Simplify right side
    18,919.56x = 271,649,378.53
  5. Step 5: Solve for x
    x = 271,649,378.53/18,919.56
  6. Step 6: Final answer
    x = 14,358.12

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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.