Home / 9,827.89-14,742.70-2,807.78

Finding the Fourth Proportional to 9,827.89, 14,742.70 and 2,807.78

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Solution

The fourth proportional to 9,827.89, 14,742.70 and 2,807.78 is: 4,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,827.89 : 14,742.70 = 2,807.78 : x
  2. Step 2: Convert to fraction form
    9,827.89/14,742.70 = 2,807.78/x
  3. Step 3: Cross multiply
    9,827.89x = 14,742.70 × 2,807.78
  4. Step 4: Simplify right side
    9,827.89x = 41,394,177.47
  5. Step 5: Solve for x
    x = 41,394,177.47/9,827.89
  6. Step 6: Final answer
    x = 4,211.91

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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.