Home / 9,258.94-12,777.28-5,279.96

Finding the Fourth Proportional to 9,258.94, 12,777.28 and 5,279.96

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Solution

The fourth proportional to 9,258.94, 12,777.28 and 5,279.96 is: 7,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258.94 : 12,777.28 = 5,279.96 : x
  2. Step 2: Convert to fraction form
    9,258.94/12,777.28 = 5,279.96/x
  3. Step 3: Cross multiply
    9,258.94x = 12,777.28 × 5,279.96
  4. Step 4: Simplify right side
    9,258.94x = 67,463,500.91
  5. Step 5: Solve for x
    x = 67,463,500.91/9,258.94
  6. Step 6: Final answer
    x = 7,286.31

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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.