Home / 9,321.19-12,863.23-5,342.11

Finding the Fourth Proportional to 9,321.19, 12,863.23 and 5,342.11

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Solution

The fourth proportional to 9,321.19, 12,863.23 and 5,342.11 is: 7,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.19 : 12,863.23 = 5,342.11 : x
  2. Step 2: Convert to fraction form
    9,321.19/12,863.23 = 5,342.11/x
  3. Step 3: Cross multiply
    9,321.19x = 12,863.23 × 5,342.11
  4. Step 4: Simplify right side
    9,321.19x = 68,716,789.62
  5. Step 5: Solve for x
    x = 68,716,789.62/9,321.19
  6. Step 6: Final answer
    x = 7,372.10

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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.