Home / 13,959.42-20,943.99-5,200.08

Finding the Fourth Proportional to 13,959.42, 20,943.99 and 5,200.08

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Solution

The fourth proportional to 13,959.42, 20,943.99 and 5,200.08 is: 7,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.42 : 20,943.99 = 5,200.08 : x
  2. Step 2: Convert to fraction form
    13,959.42/20,943.99 = 5,200.08/x
  3. Step 3: Cross multiply
    13,959.42x = 20,943.99 × 5,200.08
  4. Step 4: Simplify right side
    13,959.42x = 108,910,423.52
  5. Step 5: Solve for x
    x = 108,910,423.52/13,959.42
  6. Step 6: Final answer
    x = 7,801.93

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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.