Home / 8,134.65-12,195.90-5,207.31

Finding the Fourth Proportional to 8,134.65, 12,195.90 and 5,207.31

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Solution

The fourth proportional to 8,134.65, 12,195.90 and 5,207.31 is: 7,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,134.65 : 12,195.90 = 5,207.31 : x
  2. Step 2: Convert to fraction form
    8,134.65/12,195.90 = 5,207.31/x
  3. Step 3: Cross multiply
    8,134.65x = 12,195.90 × 5,207.31
  4. Step 4: Simplify right side
    8,134.65x = 63,507,832.03
  5. Step 5: Solve for x
    x = 63,507,832.03/8,134.65
  6. Step 6: Final answer
    x = 7,807.08

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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.