Home / 10,221.46-15,319.82-7,255.24

Finding the Fourth Proportional to 10,221.46, 15,319.82 and 7,255.24

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Solution

The fourth proportional to 10,221.46, 15,319.82 and 7,255.24 is: 10,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.46 : 15,319.82 = 7,255.24 : x
  2. Step 2: Convert to fraction form
    10,221.46/15,319.82 = 7,255.24/x
  3. Step 3: Cross multiply
    10,221.46x = 15,319.82 × 7,255.24
  4. Step 4: Simplify right side
    10,221.46x = 111,148,970.86
  5. Step 5: Solve for x
    x = 111,148,970.86/10,221.46
  6. Step 6: Final answer
    x = 10,874.08

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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.