Home / 11,488.36-15,841.38-7,755.88

Finding the Fourth Proportional to 11,488.36, 15,841.38 and 7,755.88

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Solution

The fourth proportional to 11,488.36, 15,841.38 and 7,755.88 is: 10,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488.36 : 15,841.38 = 7,755.88 : x
  2. Step 2: Convert to fraction form
    11,488.36/15,841.38 = 7,755.88/x
  3. Step 3: Cross multiply
    11,488.36x = 15,841.38 × 7,755.88
  4. Step 4: Simplify right side
    11,488.36x = 122,863,842.31
  5. Step 5: Solve for x
    x = 122,863,842.31/11,488.36
  6. Step 6: Final answer
    x = 10,694.64

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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.