Home / 8,718.96-12,029.12-5,734.56

Finding the Fourth Proportional to 8,718.96, 12,029.12 and 5,734.56

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Solution

The fourth proportional to 8,718.96, 12,029.12 and 5,734.56 is: 7,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.96 : 12,029.12 = 5,734.56 : x
  2. Step 2: Convert to fraction form
    8,718.96/12,029.12 = 5,734.56/x
  3. Step 3: Cross multiply
    8,718.96x = 12,029.12 × 5,734.56
  4. Step 4: Simplify right side
    8,718.96x = 68,981,710.39
  5. Step 5: Solve for x
    x = 68,981,710.39/8,718.96
  6. Step 6: Final answer
    x = 7,911.69

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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.