Home / 11,132.80-15,360.11-6,416.18

Finding the Fourth Proportional to 11,132.80, 15,360.11 and 6,416.18

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Solution

The fourth proportional to 11,132.80, 15,360.11 and 6,416.18 is: 8,852.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.80 : 15,360.11 = 6,416.18 : x
  2. Step 2: Convert to fraction form
    11,132.80/15,360.11 = 6,416.18/x
  3. Step 3: Cross multiply
    11,132.80x = 15,360.11 × 6,416.18
  4. Step 4: Simplify right side
    11,132.80x = 98,553,230.58
  5. Step 5: Solve for x
    x = 98,553,230.58/11,132.80
  6. Step 6: Final answer
    x = 8,852.51

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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.