Home / 11,125.80-15,350.45-6,409.17

Finding the Fourth Proportional to 11,125.80, 15,350.45 and 6,409.17

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Solution

The fourth proportional to 11,125.80, 15,350.45 and 6,409.17 is: 8,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.80 : 15,350.45 = 6,409.17 : x
  2. Step 2: Convert to fraction form
    11,125.80/15,350.45 = 6,409.17/x
  3. Step 3: Cross multiply
    11,125.80x = 15,350.45 × 6,409.17
  4. Step 4: Simplify right side
    11,125.80x = 98,383,611.58
  5. Step 5: Solve for x
    x = 98,383,611.58/11,125.80
  6. Step 6: Final answer
    x = 8,842.83

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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.