Home / 9,194.22-12,687.60-5,215.26

Finding the Fourth Proportional to 9,194.22, 12,687.60 and 5,215.26

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Solution

The fourth proportional to 9,194.22, 12,687.60 and 5,215.26 is: 7,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,194.22 : 12,687.60 = 5,215.26 : x
  2. Step 2: Convert to fraction form
    9,194.22/12,687.60 = 5,215.26/x
  3. Step 3: Cross multiply
    9,194.22x = 12,687.60 × 5,215.26
  4. Step 4: Simplify right side
    9,194.22x = 66,169,132.78
  5. Step 5: Solve for x
    x = 66,169,132.78/9,194.22
  6. Step 6: Final answer
    x = 7,196.82

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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.