Home / 11,445.06-15,792.12-6,409.44

Finding the Fourth Proportional to 11,445.06, 15,792.12 and 6,409.44

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Solution

The fourth proportional to 11,445.06, 15,792.12 and 6,409.44 is: 8,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.06 : 15,792.12 = 6,409.44 : x
  2. Step 2: Convert to fraction form
    11,445.06/15,792.12 = 6,409.44/x
  3. Step 3: Cross multiply
    11,445.06x = 15,792.12 × 6,409.44
  4. Step 4: Simplify right side
    11,445.06x = 101,218,645.61
  5. Step 5: Solve for x
    x = 101,218,645.61/11,445.06
  6. Step 6: Final answer
    x = 8,843.87

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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.