Home / 7,872.61-11,822.07-4,917.93

Finding the Fourth Proportional to 7,872.61, 11,822.07 and 4,917.93

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Solution

The fourth proportional to 7,872.61, 11,822.07 and 4,917.93 is: 7,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.61 : 11,822.07 = 4,917.93 : x
  2. Step 2: Convert to fraction form
    7,872.61/11,822.07 = 4,917.93/x
  3. Step 3: Cross multiply
    7,872.61x = 11,822.07 × 4,917.93
  4. Step 4: Simplify right side
    7,872.61x = 58,140,112.72
  5. Step 5: Solve for x
    x = 58,140,112.72/7,872.61
  6. Step 6: Final answer
    x = 7,385.11

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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.