Home / 15,314.87-22,972.29-4,785.80

Finding the Fourth Proportional to 15,314.87, 22,972.29 and 4,785.80

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Solution

The fourth proportional to 15,314.87, 22,972.29 and 4,785.80 is: 7,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.87 : 22,972.29 = 4,785.80 : x
  2. Step 2: Convert to fraction form
    15,314.87/22,972.29 = 4,785.80/x
  3. Step 3: Cross multiply
    15,314.87x = 22,972.29 × 4,785.80
  4. Step 4: Simplify right side
    15,314.87x = 109,940,652.67
  5. Step 5: Solve for x
    x = 109,940,652.67/15,314.87
  6. Step 6: Final answer
    x = 7,178.69

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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.