Home / 7,856.24-11,778.18-5,383.52

Finding the Fourth Proportional to 7,856.24, 11,778.18 and 5,383.52

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Solution

The fourth proportional to 7,856.24, 11,778.18 and 5,383.52 is: 8,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.24 : 11,778.18 = 5,383.52 : x
  2. Step 2: Convert to fraction form
    7,856.24/11,778.18 = 5,383.52/x
  3. Step 3: Cross multiply
    7,856.24x = 11,778.18 × 5,383.52
  4. Step 4: Simplify right side
    7,856.24x = 63,408,067.59
  5. Step 5: Solve for x
    x = 63,408,067.59/7,856.24
  6. Step 6: Final answer
    x = 8,071.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.