Home / 8,947.20-13,416.63-3,320.95

Finding the Fourth Proportional to 8,947.20, 13,416.63 and 3,320.95

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Solution

The fourth proportional to 8,947.20, 13,416.63 and 3,320.95 is: 4,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.20 : 13,416.63 = 3,320.95 : x
  2. Step 2: Convert to fraction form
    8,947.20/13,416.63 = 3,320.95/x
  3. Step 3: Cross multiply
    8,947.20x = 13,416.63 × 3,320.95
  4. Step 4: Simplify right side
    8,947.20x = 44,555,873.71
  5. Step 5: Solve for x
    x = 44,555,873.71/8,947.20
  6. Step 6: Final answer
    x = 4,979.87

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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.