Home / 8,239.89-12,362.15-3,313.00

Finding the Fourth Proportional to 8,239.89, 12,362.15 and 3,313.00

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Solution

The fourth proportional to 8,239.89, 12,362.15 and 3,313.00 is: 4,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.89 : 12,362.15 = 3,313.00 : x
  2. Step 2: Convert to fraction form
    8,239.89/12,362.15 = 3,313.00/x
  3. Step 3: Cross multiply
    8,239.89x = 12,362.15 × 3,313.00
  4. Step 4: Simplify right side
    8,239.89x = 40,955,826.69
  5. Step 5: Solve for x
    x = 40,955,826.69/8,239.89
  6. Step 6: Final answer
    x = 4,970.43

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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.