Home / 8,207.82-11,328.12-5,064.21

Finding the Fourth Proportional to 8,207.82, 11,328.12 and 5,064.21

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Solution

The fourth proportional to 8,207.82, 11,328.12 and 5,064.21 is: 6,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.82 : 11,328.12 = 5,064.21 : x
  2. Step 2: Convert to fraction form
    8,207.82/11,328.12 = 5,064.21/x
  3. Step 3: Cross multiply
    8,207.82x = 11,328.12 × 5,064.21
  4. Step 4: Simplify right side
    8,207.82x = 57,367,978.59
  5. Step 5: Solve for x
    x = 57,367,978.59/8,207.82
  6. Step 6: Final answer
    x = 6,989.43

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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.