Home / 8,128.68-11,217.42-5,334

Finding the Fourth Proportional to 8,128.68, 11,217.42 and 5,334

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Solution

The fourth proportional to 8,128.68, 11,217.42 and 5,334 is: 7,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.68 : 11,217.42 = 5,334 : x
  2. Step 2: Convert to fraction form
    8,128.68/11,217.42 = 5,334/x
  3. Step 3: Cross multiply
    8,128.68x = 11,217.42 × 5,334
  4. Step 4: Simplify right side
    8,128.68x = 59,833,718.28
  5. Step 5: Solve for x
    x = 59,833,718.28/8,128.68
  6. Step 6: Final answer
    x = 7,360.82

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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.