Home / 15,026.75-20,735.07-8,311.46

Finding the Fourth Proportional to 15,026.75, 20,735.07 and 8,311.46

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Solution

The fourth proportional to 15,026.75, 20,735.07 and 8,311.46 is: 11,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.75 : 20,735.07 = 8,311.46 : x
  2. Step 2: Convert to fraction form
    15,026.75/20,735.07 = 8,311.46/x
  3. Step 3: Cross multiply
    15,026.75x = 20,735.07 × 8,311.46
  4. Step 4: Simplify right side
    15,026.75x = 172,338,601.23
  5. Step 5: Solve for x
    x = 172,338,601.23/15,026.75
  6. Step 6: Final answer
    x = 11,468.79

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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.