Home / 8,679.49-11,977.67-4,700.61

Finding the Fourth Proportional to 8,679.49, 11,977.67 and 4,700.61

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Solution

The fourth proportional to 8,679.49, 11,977.67 and 4,700.61 is: 6,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.49 : 11,977.67 = 4,700.61 : x
  2. Step 2: Convert to fraction form
    8,679.49/11,977.67 = 4,700.61/x
  3. Step 3: Cross multiply
    8,679.49x = 11,977.67 × 4,700.61
  4. Step 4: Simplify right side
    8,679.49x = 56,302,367.13
  5. Step 5: Solve for x
    x = 56,302,367.13/8,679.49
  6. Step 6: Final answer
    x = 6,486.83

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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.