Home / 12,933.60-19,397.90-3,571.28

Finding the Fourth Proportional to 12,933.60, 19,397.90 and 3,571.28

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Solution

The fourth proportional to 12,933.60, 19,397.90 and 3,571.28 is: 5,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.60 : 19,397.90 = 3,571.28 : x
  2. Step 2: Convert to fraction form
    12,933.60/19,397.90 = 3,571.28/x
  3. Step 3: Cross multiply
    12,933.60x = 19,397.90 × 3,571.28
  4. Step 4: Simplify right side
    12,933.60x = 69,275,332.31
  5. Step 5: Solve for x
    x = 69,275,332.31/12,933.60
  6. Step 6: Final answer
    x = 5,356.23

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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.