Home / 9,188.29-12,679.61-5,360.66

Finding the Fourth Proportional to 9,188.29, 12,679.61 and 5,360.66

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Solution

The fourth proportional to 9,188.29, 12,679.61 and 5,360.66 is: 7,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.29 : 12,679.61 = 5,360.66 : x
  2. Step 2: Convert to fraction form
    9,188.29/12,679.61 = 5,360.66/x
  3. Step 3: Cross multiply
    9,188.29x = 12,679.61 × 5,360.66
  4. Step 4: Simplify right side
    9,188.29x = 67,971,078.14
  5. Step 5: Solve for x
    x = 67,971,078.14/9,188.29
  6. Step 6: Final answer
    x = 7,397.58

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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.