Home / 13,458.20-20,187.24-4,098.16

Finding the Fourth Proportional to 13,458.20, 20,187.24 and 4,098.16

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Solution

The fourth proportional to 13,458.20, 20,187.24 and 4,098.16 is: 6,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.20 : 20,187.24 = 4,098.16 : x
  2. Step 2: Convert to fraction form
    13,458.20/20,187.24 = 4,098.16/x
  3. Step 3: Cross multiply
    13,458.20x = 20,187.24 × 4,098.16
  4. Step 4: Simplify right side
    13,458.20x = 82,730,539.48
  5. Step 5: Solve for x
    x = 82,730,539.48/13,458.20
  6. Step 6: Final answer
    x = 6,147.22

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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.