Home / 18,770.58-28,155.88-6,288.30

Finding the Fourth Proportional to 18,770.58, 28,155.88 and 6,288.30

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Solution

The fourth proportional to 18,770.58, 28,155.88 and 6,288.30 is: 9,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.58 : 28,155.88 = 6,288.30 : x
  2. Step 2: Convert to fraction form
    18,770.58/28,155.88 = 6,288.30/x
  3. Step 3: Cross multiply
    18,770.58x = 28,155.88 × 6,288.30
  4. Step 4: Simplify right side
    18,770.58x = 177,052,620.20
  5. Step 5: Solve for x
    x = 177,052,620.20/18,770.58
  6. Step 6: Final answer
    x = 9,432.45

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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.