Home / 8,243.76-12,362.40-3,312.08

Finding the Fourth Proportional to 8,243.76, 12,362.40 and 3,312.08

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Solution

The fourth proportional to 8,243.76, 12,362.40 and 3,312.08 is: 4,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.76 : 12,362.40 = 3,312.08 : x
  2. Step 2: Convert to fraction form
    8,243.76/12,362.40 = 3,312.08/x
  3. Step 3: Cross multiply
    8,243.76x = 12,362.40 × 3,312.08
  4. Step 4: Simplify right side
    8,243.76x = 40,945,257.79
  5. Step 5: Solve for x
    x = 40,945,257.79/8,243.76
  6. Step 6: Final answer
    x = 4,966.82

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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.