Home / 8,687.24-11,988.88-4,910.58

Finding the Fourth Proportional to 8,687.24, 11,988.88 and 4,910.58

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Solution

The fourth proportional to 8,687.24, 11,988.88 and 4,910.58 is: 6,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.24 : 11,988.88 = 4,910.58 : x
  2. Step 2: Convert to fraction form
    8,687.24/11,988.88 = 4,910.58/x
  3. Step 3: Cross multiply
    8,687.24x = 11,988.88 × 4,910.58
  4. Step 4: Simplify right side
    8,687.24x = 58,872,354.35
  5. Step 5: Solve for x
    x = 58,872,354.35/8,687.24
  6. Step 6: Final answer
    x = 6,776.88

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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.