Home / 8,630.39-11,910.35-5,272.65

Finding the Fourth Proportional to 8,630.39, 11,910.35 and 5,272.65

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Solution

The fourth proportional to 8,630.39, 11,910.35 and 5,272.65 is: 7,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.39 : 11,910.35 = 5,272.65 : x
  2. Step 2: Convert to fraction form
    8,630.39/11,910.35 = 5,272.65/x
  3. Step 3: Cross multiply
    8,630.39x = 11,910.35 × 5,272.65
  4. Step 4: Simplify right side
    8,630.39x = 62,799,120.11
  5. Step 5: Solve for x
    x = 62,799,120.11/8,630.39
  6. Step 6: Final answer
    x = 7,276.51

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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.