Home / 13,601.04-20,382.41-10,815.35

Finding the Fourth Proportional to 13,601.04, 20,382.41 and 10,815.35

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Solution

The fourth proportional to 13,601.04, 20,382.41 and 10,815.35 is: 16,207.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.04 : 20,382.41 = 10,815.35 : x
  2. Step 2: Convert to fraction form
    13,601.04/20,382.41 = 10,815.35/x
  3. Step 3: Cross multiply
    13,601.04x = 20,382.41 × 10,815.35
  4. Step 4: Simplify right side
    13,601.04x = 220,442,742.00
  5. Step 5: Solve for x
    x = 220,442,742.00/13,601.04
  6. Step 6: Final answer
    x = 16,207.79

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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.