Home / 8,238.40-11,365.92-4,699.72

Finding the Fourth Proportional to 8,238.40, 11,365.92 and 4,699.72

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Solution

The fourth proportional to 8,238.40, 11,365.92 and 4,699.72 is: 6,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.40 : 11,365.92 = 4,699.72 : x
  2. Step 2: Convert to fraction form
    8,238.40/11,365.92 = 4,699.72/x
  3. Step 3: Cross multiply
    8,238.40x = 11,365.92 × 4,699.72
  4. Step 4: Simplify right side
    8,238.40x = 53,416,641.54
  5. Step 5: Solve for x
    x = 53,416,641.54/8,238.40
  6. Step 6: Final answer
    x = 6,483.86

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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.