Home / 18,819.32-28,218.88-6,335.18

Finding the Fourth Proportional to 18,819.32, 28,218.88 and 6,335.18

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Solution

The fourth proportional to 18,819.32, 28,218.88 and 6,335.18 is: 9,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.32 : 28,218.88 = 6,335.18 : x
  2. Step 2: Convert to fraction form
    18,819.32/28,218.88 = 6,335.18/x
  3. Step 3: Cross multiply
    18,819.32x = 28,218.88 × 6,335.18
  4. Step 4: Simplify right side
    18,819.32x = 178,771,684.20
  5. Step 5: Solve for x
    x = 178,771,684.20/18,819.32
  6. Step 6: Final answer
    x = 9,499.37

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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.