Home / 8,237.40-12,357.04-2,689.16

Finding the Fourth Proportional to 8,237.40, 12,357.04 and 2,689.16

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Solution

The fourth proportional to 8,237.40, 12,357.04 and 2,689.16 is: 4,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.40 : 12,357.04 = 2,689.16 : x
  2. Step 2: Convert to fraction form
    8,237.40/12,357.04 = 2,689.16/x
  3. Step 3: Cross multiply
    8,237.40x = 12,357.04 × 2,689.16
  4. Step 4: Simplify right side
    8,237.40x = 33,230,057.69
  5. Step 5: Solve for x
    x = 33,230,057.69/8,237.40
  6. Step 6: Final answer
    x = 4,034.05

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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.