Home / 8,218.67-11,347.23-4,862.55

Finding the Fourth Proportional to 8,218.67, 11,347.23 and 4,862.55

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Solution

The fourth proportional to 8,218.67, 11,347.23 and 4,862.55 is: 6,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.67 : 11,347.23 = 4,862.55 : x
  2. Step 2: Convert to fraction form
    8,218.67/11,347.23 = 4,862.55/x
  3. Step 3: Cross multiply
    8,218.67x = 11,347.23 × 4,862.55
  4. Step 4: Simplify right side
    8,218.67x = 55,176,473.24
  5. Step 5: Solve for x
    x = 55,176,473.24/8,218.67
  6. Step 6: Final answer
    x = 6,713.56

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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.