Home / 13,378.29-20,076.66-4,613.20

Finding the Fourth Proportional to 13,378.29, 20,076.66 and 4,613.20

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Solution

The fourth proportional to 13,378.29, 20,076.66 and 4,613.20 is: 6,922.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.29 : 20,076.66 = 4,613.20 : x
  2. Step 2: Convert to fraction form
    13,378.29/20,076.66 = 4,613.20/x
  3. Step 3: Cross multiply
    13,378.29x = 20,076.66 × 4,613.20
  4. Step 4: Simplify right side
    13,378.29x = 92,617,710.65
  5. Step 5: Solve for x
    x = 92,617,710.65/13,378.29
  6. Step 6: Final answer
    x = 6,922.99

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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.