Home / 8,488.18-12,735.24-3,811.51

Finding the Fourth Proportional to 8,488.18, 12,735.24 and 3,811.51

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Solution

The fourth proportional to 8,488.18, 12,735.24 and 3,811.51 is: 5,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.18 : 12,735.24 = 3,811.51 : x
  2. Step 2: Convert to fraction form
    8,488.18/12,735.24 = 3,811.51/x
  3. Step 3: Cross multiply
    8,488.18x = 12,735.24 × 3,811.51
  4. Step 4: Simplify right side
    8,488.18x = 48,540,494.61
  5. Step 5: Solve for x
    x = 48,540,494.61/8,488.18
  6. Step 6: Final answer
    x = 5,718.60

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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.