Home / 8,248.21-11,387.72-5,729.51

Finding the Fourth Proportional to 8,248.21, 11,387.72 and 5,729.51

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Solution

The fourth proportional to 8,248.21, 11,387.72 and 5,729.51 is: 7,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.21 : 11,387.72 = 5,729.51 : x
  2. Step 2: Convert to fraction form
    8,248.21/11,387.72 = 5,729.51/x
  3. Step 3: Cross multiply
    8,248.21x = 11,387.72 × 5,729.51
  4. Step 4: Simplify right side
    8,248.21x = 65,246,055.62
  5. Step 5: Solve for x
    x = 65,246,055.62/8,248.21
  6. Step 6: Final answer
    x = 7,910.33

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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.