Home / 13,380.54-18,464.60-7,330.68

Finding the Fourth Proportional to 13,380.54, 18,464.60 and 7,330.68

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Solution

The fourth proportional to 13,380.54, 18,464.60 and 7,330.68 is: 10,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.54 : 18,464.60 = 7,330.68 : x
  2. Step 2: Convert to fraction form
    13,380.54/18,464.60 = 7,330.68/x
  3. Step 3: Cross multiply
    13,380.54x = 18,464.60 × 7,330.68
  4. Step 4: Simplify right side
    13,380.54x = 135,358,073.93
  5. Step 5: Solve for x
    x = 135,358,073.93/13,380.54
  6. Step 6: Final answer
    x = 10,116.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.