Home / 13,340.83-20,004.97-7,795.78

Finding the Fourth Proportional to 13,340.83, 20,004.97 and 7,795.78

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Solution

The fourth proportional to 13,340.83, 20,004.97 and 7,795.78 is: 11,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.83 : 20,004.97 = 7,795.78 : x
  2. Step 2: Convert to fraction form
    13,340.83/20,004.97 = 7,795.78/x
  3. Step 3: Cross multiply
    13,340.83x = 20,004.97 × 7,795.78
  4. Step 4: Simplify right side
    13,340.83x = 155,954,206.02
  5. Step 5: Solve for x
    x = 155,954,206.02/13,340.83
  6. Step 6: Final answer
    x = 11,689.99

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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.