Home / 8,287.36-11,438.16-5,449.76

Finding the Fourth Proportional to 8,287.36, 11,438.16 and 5,449.76

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Solution

The fourth proportional to 8,287.36, 11,438.16 and 5,449.76 is: 7,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.36 : 11,438.16 = 5,449.76 : x
  2. Step 2: Convert to fraction form
    8,287.36/11,438.16 = 5,449.76/x
  3. Step 3: Cross multiply
    8,287.36x = 11,438.16 × 5,449.76
  4. Step 4: Simplify right side
    8,287.36x = 62,335,226.84
  5. Step 5: Solve for x
    x = 62,335,226.84/8,287.36
  6. Step 6: Final answer
    x = 7,521.72

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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.