Home / 8,691.83-13,038.51-2,451.89

Finding the Fourth Proportional to 8,691.83, 13,038.51 and 2,451.89

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Solution

The fourth proportional to 8,691.83, 13,038.51 and 2,451.89 is: 3,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.83 : 13,038.51 = 2,451.89 : x
  2. Step 2: Convert to fraction form
    8,691.83/13,038.51 = 2,451.89/x
  3. Step 3: Cross multiply
    8,691.83x = 13,038.51 × 2,451.89
  4. Step 4: Simplify right side
    8,691.83x = 31,968,992.28
  5. Step 5: Solve for x
    x = 31,968,992.28/8,691.83
  6. Step 6: Final answer
    x = 3,678.05

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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.