Home / 9,319.88-12,858.06-5,286.20

Finding the Fourth Proportional to 9,319.88, 12,858.06 and 5,286.20

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Solution

The fourth proportional to 9,319.88, 12,858.06 and 5,286.20 is: 7,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.88 : 12,858.06 = 5,286.20 : x
  2. Step 2: Convert to fraction form
    9,319.88/12,858.06 = 5,286.20/x
  3. Step 3: Cross multiply
    9,319.88x = 12,858.06 × 5,286.20
  4. Step 4: Simplify right side
    9,319.88x = 67,970,276.77
  5. Step 5: Solve for x
    x = 67,970,276.77/9,319.88
  6. Step 6: Final answer
    x = 7,293.04

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Similar ratio
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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.