Home / 8,319.36-11,479.68-5,176.56

Finding the Fourth Proportional to 8,319.36, 11,479.68 and 5,176.56

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Solution

The fourth proportional to 8,319.36, 11,479.68 and 5,176.56 is: 7,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.36 : 11,479.68 = 5,176.56 : x
  2. Step 2: Convert to fraction form
    8,319.36/11,479.68 = 5,176.56/x
  3. Step 3: Cross multiply
    8,319.36x = 11,479.68 × 5,176.56
  4. Step 4: Simplify right side
    8,319.36x = 59,425,252.30
  5. Step 5: Solve for x
    x = 59,425,252.30/8,319.36
  6. Step 6: Final answer
    x = 7,143.01

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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.