Home / 13,179.60-19,763.64-3,943.44

Finding the Fourth Proportional to 13,179.60, 19,763.64 and 3,943.44

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Solution

The fourth proportional to 13,179.60, 19,763.64 and 3,943.44 is: 5,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.60 : 19,763.64 = 3,943.44 : x
  2. Step 2: Convert to fraction form
    13,179.60/19,763.64 = 3,943.44/x
  3. Step 3: Cross multiply
    13,179.60x = 19,763.64 × 3,943.44
  4. Step 4: Simplify right side
    13,179.60x = 77,936,728.52
  5. Step 5: Solve for x
    x = 77,936,728.52/13,179.60
  6. Step 6: Final answer
    x = 5,913.44

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1.5x scale

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.