Home / 13,648.20-20,471.37-5,326.66

Finding the Fourth Proportional to 13,648.20, 20,471.37 and 5,326.66

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Solution

The fourth proportional to 13,648.20, 20,471.37 and 5,326.66 is: 7,989.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.20 : 20,471.37 = 5,326.66 : x
  2. Step 2: Convert to fraction form
    13,648.20/20,471.37 = 5,326.66/x
  3. Step 3: Cross multiply
    13,648.20x = 20,471.37 × 5,326.66
  4. Step 4: Simplify right side
    13,648.20x = 109,044,027.72
  5. Step 5: Solve for x
    x = 109,044,027.72/13,648.20
  6. Step 6: Final answer
    x = 7,989.63

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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.