Home / 13,200.77-19,801.15-3,340.81

Finding the Fourth Proportional to 13,200.77, 19,801.15 and 3,340.81

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Solution

The fourth proportional to 13,200.77, 19,801.15 and 3,340.81 is: 5,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.77 : 19,801.15 = 3,340.81 : x
  2. Step 2: Convert to fraction form
    13,200.77/19,801.15 = 3,340.81/x
  3. Step 3: Cross multiply
    13,200.77x = 19,801.15 × 3,340.81
  4. Step 4: Simplify right side
    13,200.77x = 66,151,943.97
  5. Step 5: Solve for x
    x = 66,151,943.97/13,200.77
  6. Step 6: Final answer
    x = 5,011.22

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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.