Home / 13,452.90-18,566.64-8,147.58

Finding the Fourth Proportional to 13,452.90, 18,566.64 and 8,147.58

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Solution

The fourth proportional to 13,452.90, 18,566.64 and 8,147.58 is: 11,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.90 : 18,566.64 = 8,147.58 : x
  2. Step 2: Convert to fraction form
    13,452.90/18,566.64 = 8,147.58/x
  3. Step 3: Cross multiply
    13,452.90x = 18,566.64 × 8,147.58
  4. Step 4: Simplify right side
    13,452.90x = 151,273,184.73
  5. Step 5: Solve for x
    x = 151,273,184.73/13,452.90
  6. Step 6: Final answer
    x = 11,244.65

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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.