Home / 8,261.68-11,400.72-4,725.28

Finding the Fourth Proportional to 8,261.68, 11,400.72 and 4,725.28

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Solution

The fourth proportional to 8,261.68, 11,400.72 and 4,725.28 is: 6,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.68 : 11,400.72 = 4,725.28 : x
  2. Step 2: Convert to fraction form
    8,261.68/11,400.72 = 4,725.28/x
  3. Step 3: Cross multiply
    8,261.68x = 11,400.72 × 4,725.28
  4. Step 4: Simplify right side
    8,261.68x = 53,871,594.20
  5. Step 5: Solve for x
    x = 53,871,594.20/8,261.68
  6. Step 6: Final answer
    x = 6,520.66

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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.