Home / 8,910.14-12,298.66-5,766.54

Finding the Fourth Proportional to 8,910.14, 12,298.66 and 5,766.54

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Solution

The fourth proportional to 8,910.14, 12,298.66 and 5,766.54 is: 7,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.14 : 12,298.66 = 5,766.54 : x
  2. Step 2: Convert to fraction form
    8,910.14/12,298.66 = 5,766.54/x
  3. Step 3: Cross multiply
    8,910.14x = 12,298.66 × 5,766.54
  4. Step 4: Simplify right side
    8,910.14x = 70,920,714.84
  5. Step 5: Solve for x
    x = 70,920,714.84/8,910.14
  6. Step 6: Final answer
    x = 7,959.55

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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.