Home / 8,688.29-13,021.98-4,001.85

Finding the Fourth Proportional to 8,688.29, 13,021.98 and 4,001.85

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Solution

The fourth proportional to 8,688.29, 13,021.98 and 4,001.85 is: 5,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.29 : 13,021.98 = 4,001.85 : x
  2. Step 2: Convert to fraction form
    8,688.29/13,021.98 = 4,001.85/x
  3. Step 3: Cross multiply
    8,688.29x = 13,021.98 × 4,001.85
  4. Step 4: Simplify right side
    8,688.29x = 52,112,010.66
  5. Step 5: Solve for x
    x = 52,112,010.66/8,688.29
  6. Step 6: Final answer
    x = 5,997.96

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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.