Home / 8,207.02-12,287.29-6,379.51

Finding the Fourth Proportional to 8,207.02, 12,287.29 and 6,379.51

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Solution

The fourth proportional to 8,207.02, 12,287.29 and 6,379.51 is: 9,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.02 : 12,287.29 = 6,379.51 : x
  2. Step 2: Convert to fraction form
    8,207.02/12,287.29 = 6,379.51/x
  3. Step 3: Cross multiply
    8,207.02x = 12,287.29 × 6,379.51
  4. Step 4: Simplify right side
    8,207.02x = 78,386,894.38
  5. Step 5: Solve for x
    x = 78,386,894.38/8,207.02
  6. Step 6: Final answer
    x = 9,551.20

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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.