Home / 9,321.19-12,863.80-5,342.56

Finding the Fourth Proportional to 9,321.19, 12,863.80 and 5,342.56

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Solution

The fourth proportional to 9,321.19, 12,863.80 and 5,342.56 is: 7,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.19 : 12,863.80 = 5,342.56 : x
  2. Step 2: Convert to fraction form
    9,321.19/12,863.80 = 5,342.56/x
  3. Step 3: Cross multiply
    9,321.19x = 12,863.80 × 5,342.56
  4. Step 4: Simplify right side
    9,321.19x = 68,725,591.91
  5. Step 5: Solve for x
    x = 68,725,591.91/9,321.19
  6. Step 6: Final answer
    x = 7,373.05

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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.