Home / 8,231.93-12,348.19-3,848.21

Finding the Fourth Proportional to 8,231.93, 12,348.19 and 3,848.21

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Solution

The fourth proportional to 8,231.93, 12,348.19 and 3,848.21 is: 5,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.93 : 12,348.19 = 3,848.21 : x
  2. Step 2: Convert to fraction form
    8,231.93/12,348.19 = 3,848.21/x
  3. Step 3: Cross multiply
    8,231.93x = 12,348.19 × 3,848.21
  4. Step 4: Simplify right side
    8,231.93x = 47,518,417.61
  5. Step 5: Solve for x
    x = 47,518,417.61/8,231.93
  6. Step 6: Final answer
    x = 5,772.45

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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.