Home / 13,589.04-20,382.52-4,228.80

Finding the Fourth Proportional to 13,589.04, 20,382.52 and 4,228.80

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Solution

The fourth proportional to 13,589.04, 20,382.52 and 4,228.80 is: 6,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.04 : 20,382.52 = 4,228.80 : x
  2. Step 2: Convert to fraction form
    13,589.04/20,382.52 = 4,228.80/x
  3. Step 3: Cross multiply
    13,589.04x = 20,382.52 × 4,228.80
  4. Step 4: Simplify right side
    13,589.04x = 86,193,600.58
  5. Step 5: Solve for x
    x = 86,193,600.58/13,589.04
  6. Step 6: Final answer
    x = 6,342.88

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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.