Home / 15,447.72-23,167.90-7,122.60

Finding the Fourth Proportional to 15,447.72, 23,167.90 and 7,122.60

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Solution

The fourth proportional to 15,447.72, 23,167.90 and 7,122.60 is: 10,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.72 : 23,167.90 = 7,122.60 : x
  2. Step 2: Convert to fraction form
    15,447.72/23,167.90 = 7,122.60/x
  3. Step 3: Cross multiply
    15,447.72x = 23,167.90 × 7,122.60
  4. Step 4: Simplify right side
    15,447.72x = 165,015,684.54
  5. Step 5: Solve for x
    x = 165,015,684.54/15,447.72
  6. Step 6: Final answer
    x = 10,682.20

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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.