Home / 43,338.60-65,007.90-12,174.12

Finding the Fourth Proportional to 43,338.60, 65,007.90 and 12,174.12

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Solution

The fourth proportional to 43,338.60, 65,007.90 and 12,174.12 is: 18,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,338.60 : 65,007.90 = 12,174.12 : x
  2. Step 2: Convert to fraction form
    43,338.60/65,007.90 = 12,174.12/x
  3. Step 3: Cross multiply
    43,338.60x = 65,007.90 × 12,174.12
  4. Step 4: Simplify right side
    43,338.60x = 791,413,975.55
  5. Step 5: Solve for x
    x = 791,413,975.55/43,338.60
  6. Step 6: Final answer
    x = 18,261.18

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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.