Home / 8,215.12-11,335.27-5,029.13

Finding the Fourth Proportional to 8,215.12, 11,335.27 and 5,029.13

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Solution

The fourth proportional to 8,215.12, 11,335.27 and 5,029.13 is: 6,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.12 : 11,335.27 = 5,029.13 : x
  2. Step 2: Convert to fraction form
    8,215.12/11,335.27 = 5,029.13/x
  3. Step 3: Cross multiply
    8,215.12x = 11,335.27 × 5,029.13
  4. Step 4: Simplify right side
    8,215.12x = 57,006,546.42
  5. Step 5: Solve for x
    x = 57,006,546.42/8,215.12
  6. Step 6: Final answer
    x = 6,939.23

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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.