Home / 13,387.38-20,083.80-4,621.16

Finding the Fourth Proportional to 13,387.38, 20,083.80 and 4,621.16

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Solution

The fourth proportional to 13,387.38, 20,083.80 and 4,621.16 is: 6,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.38 : 20,083.80 = 4,621.16 : x
  2. Step 2: Convert to fraction form
    13,387.38/20,083.80 = 4,621.16/x
  3. Step 3: Cross multiply
    13,387.38x = 20,083.80 × 4,621.16
  4. Step 4: Simplify right side
    13,387.38x = 92,810,453.21
  5. Step 5: Solve for x
    x = 92,810,453.21/13,387.38
  6. Step 6: Final answer
    x = 6,932.68

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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.