Home / 8,769.60-13,156.70-3,840.21

Finding the Fourth Proportional to 8,769.60, 13,156.70 and 3,840.21

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Solution

The fourth proportional to 8,769.60, 13,156.70 and 3,840.21 is: 5,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.60 : 13,156.70 = 3,840.21 : x
  2. Step 2: Convert to fraction form
    8,769.60/13,156.70 = 3,840.21/x
  3. Step 3: Cross multiply
    8,769.60x = 13,156.70 × 3,840.21
  4. Step 4: Simplify right side
    8,769.60x = 50,524,471.71
  5. Step 5: Solve for x
    x = 50,524,471.71/8,769.60
  6. Step 6: Final answer
    x = 5,761.32

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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.