Home / 15,261.30-21,057.48-8,545.86

Finding the Fourth Proportional to 15,261.30, 21,057.48 and 8,545.86

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Solution

The fourth proportional to 15,261.30, 21,057.48 and 8,545.86 is: 11,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.30 : 21,057.48 = 8,545.86 : x
  2. Step 2: Convert to fraction form
    15,261.30/21,057.48 = 8,545.86/x
  3. Step 3: Cross multiply
    15,261.30x = 21,057.48 × 8,545.86
  4. Step 4: Simplify right side
    15,261.30x = 179,954,276.03
  5. Step 5: Solve for x
    x = 179,954,276.03/15,261.30
  6. Step 6: Final answer
    x = 11,791.54

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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.