Home / 8,121.40-11,207.49-4,584.55

Finding the Fourth Proportional to 8,121.40, 11,207.49 and 4,584.55

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Solution

The fourth proportional to 8,121.40, 11,207.49 and 4,584.55 is: 6,326.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.40 : 11,207.49 = 4,584.55 : x
  2. Step 2: Convert to fraction form
    8,121.40/11,207.49 = 4,584.55/x
  3. Step 3: Cross multiply
    8,121.40x = 11,207.49 × 4,584.55
  4. Step 4: Simplify right side
    8,121.40x = 51,381,298.28
  5. Step 5: Solve for x
    x = 51,381,298.28/8,121.40
  6. Step 6: Final answer
    x = 6,326.66

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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.