Home / 13,315.77-19,972.18-4,766.88

Finding the Fourth Proportional to 13,315.77, 19,972.18 and 4,766.88

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Solution

The fourth proportional to 13,315.77, 19,972.18 and 4,766.88 is: 7,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.77 : 19,972.18 = 4,766.88 : x
  2. Step 2: Convert to fraction form
    13,315.77/19,972.18 = 4,766.88/x
  3. Step 3: Cross multiply
    13,315.77x = 19,972.18 × 4,766.88
  4. Step 4: Simplify right side
    13,315.77x = 95,204,904.44
  5. Step 5: Solve for x
    x = 95,204,904.44/13,315.77
  6. Step 6: Final answer
    x = 7,149.79

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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.