Home / 12,356.64-18,535.42-3,591.62

Finding the Fourth Proportional to 12,356.64, 18,535.42 and 3,591.62

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Solution

The fourth proportional to 12,356.64, 18,535.42 and 3,591.62 is: 5,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.64 : 18,535.42 = 3,591.62 : x
  2. Step 2: Convert to fraction form
    12,356.64/18,535.42 = 3,591.62/x
  3. Step 3: Cross multiply
    12,356.64x = 18,535.42 × 3,591.62
  4. Step 4: Simplify right side
    12,356.64x = 66,572,185.18
  5. Step 5: Solve for x
    x = 66,572,185.18/12,356.64
  6. Step 6: Final answer
    x = 5,387.56

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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.