Home / 11,060.80-15,263.64-6,344.78

Finding the Fourth Proportional to 11,060.80, 15,263.64 and 6,344.78

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Solution

The fourth proportional to 11,060.80, 15,263.64 and 6,344.78 is: 8,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,060.80 : 15,263.64 = 6,344.78 : x
  2. Step 2: Convert to fraction form
    11,060.80/15,263.64 = 6,344.78/x
  3. Step 3: Cross multiply
    11,060.80x = 15,263.64 × 6,344.78
  4. Step 4: Simplify right side
    11,060.80x = 96,844,437.80
  5. Step 5: Solve for x
    x = 96,844,437.80/11,060.80
  6. Step 6: Final answer
    x = 8,755.64

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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.