Home / 11,255.76-15,529.52-6,780.92

Finding the Fourth Proportional to 11,255.76, 15,529.52 and 6,780.92

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Solution

The fourth proportional to 11,255.76, 15,529.52 and 6,780.92 is: 9,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.76 : 15,529.52 = 6,780.92 : x
  2. Step 2: Convert to fraction form
    11,255.76/15,529.52 = 6,780.92/x
  3. Step 3: Cross multiply
    11,255.76x = 15,529.52 × 6,780.92
  4. Step 4: Simplify right side
    11,255.76x = 105,304,372.06
  5. Step 5: Solve for x
    x = 105,304,372.06/11,255.76
  6. Step 6: Final answer
    x = 9,355.60

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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.