Home / 8,761.86-13,135.70-5,981.54

Finding the Fourth Proportional to 8,761.86, 13,135.70 and 5,981.54

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Solution

The fourth proportional to 8,761.86, 13,135.70 and 5,981.54 is: 8,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.86 : 13,135.70 = 5,981.54 : x
  2. Step 2: Convert to fraction form
    8,761.86/13,135.70 = 5,981.54/x
  3. Step 3: Cross multiply
    8,761.86x = 13,135.70 × 5,981.54
  4. Step 4: Simplify right side
    8,761.86x = 78,571,714.98
  5. Step 5: Solve for x
    x = 78,571,714.98/8,761.86
  6. Step 6: Final answer
    x = 8,967.47

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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.