Home / 8,747.79-13,127.13-3,817.50

Finding the Fourth Proportional to 8,747.79, 13,127.13 and 3,817.50

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Solution

The fourth proportional to 8,747.79, 13,127.13 and 3,817.50 is: 5,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.79 : 13,127.13 = 3,817.50 : x
  2. Step 2: Convert to fraction form
    8,747.79/13,127.13 = 3,817.50/x
  3. Step 3: Cross multiply
    8,747.79x = 13,127.13 × 3,817.50
  4. Step 4: Simplify right side
    8,747.79x = 50,112,818.78
  5. Step 5: Solve for x
    x = 50,112,818.78/8,747.79
  6. Step 6: Final answer
    x = 5,728.63

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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.