Home / 9,118.59-13,679.42-4,188.66

Finding the Fourth Proportional to 9,118.59, 13,679.42 and 4,188.66

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Solution

The fourth proportional to 9,118.59, 13,679.42 and 4,188.66 is: 6,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.59 : 13,679.42 = 4,188.66 : x
  2. Step 2: Convert to fraction form
    9,118.59/13,679.42 = 4,188.66/x
  3. Step 3: Cross multiply
    9,118.59x = 13,679.42 × 4,188.66
  4. Step 4: Simplify right side
    9,118.59x = 57,298,418.43
  5. Step 5: Solve for x
    x = 57,298,418.43/9,118.59
  6. Step 6: Final answer
    x = 6,283.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.