Home / 11,847.42-17,780.31-4,458.60

Finding the Fourth Proportional to 11,847.42, 17,780.31 and 4,458.60

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Solution

The fourth proportional to 11,847.42, 17,780.31 and 4,458.60 is: 6,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.42 : 17,780.31 = 4,458.60 : x
  2. Step 2: Convert to fraction form
    11,847.42/17,780.31 = 4,458.60/x
  3. Step 3: Cross multiply
    11,847.42x = 17,780.31 × 4,458.60
  4. Step 4: Simplify right side
    11,847.42x = 79,275,290.17
  5. Step 5: Solve for x
    x = 79,275,290.17/11,847.42
  6. Step 6: Final answer
    x = 6,691.35

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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.