Home / 10,976.88-15,155.16-9,795.92

Finding the Fourth Proportional to 10,976.88, 15,155.16 and 9,795.92

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Solution

The fourth proportional to 10,976.88, 15,155.16 and 9,795.92 is: 13,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.88 : 15,155.16 = 9,795.92 : x
  2. Step 2: Convert to fraction form
    10,976.88/15,155.16 = 9,795.92/x
  3. Step 3: Cross multiply
    10,976.88x = 15,155.16 × 9,795.92
  4. Step 4: Simplify right side
    10,976.88x = 148,458,734.95
  5. Step 5: Solve for x
    x = 148,458,734.95/10,976.88
  6. Step 6: Final answer
    x = 13,524.68

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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.