Home / 13,346.80-20,020.18-5,447.58

Finding the Fourth Proportional to 13,346.80, 20,020.18 and 5,447.58

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Solution

The fourth proportional to 13,346.80, 20,020.18 and 5,447.58 is: 8,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.80 : 20,020.18 = 5,447.58 : x
  2. Step 2: Convert to fraction form
    13,346.80/20,020.18 = 5,447.58/x
  3. Step 3: Cross multiply
    13,346.80x = 20,020.18 × 5,447.58
  4. Step 4: Simplify right side
    13,346.80x = 109,061,532.16
  5. Step 5: Solve for x
    x = 109,061,532.16/13,346.80
  6. Step 6: Final answer
    x = 8,171.36

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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.