Home / 12,355.54-18,535.13-3,589.31

Finding the Fourth Proportional to 12,355.54, 18,535.13 and 3,589.31

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Solution

The fourth proportional to 12,355.54, 18,535.13 and 3,589.31 is: 5,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.54 : 18,535.13 = 3,589.31 : x
  2. Step 2: Convert to fraction form
    12,355.54/18,535.13 = 3,589.31/x
  3. Step 3: Cross multiply
    12,355.54x = 18,535.13 × 3,589.31
  4. Step 4: Simplify right side
    12,355.54x = 66,528,327.46
  5. Step 5: Solve for x
    x = 66,528,327.46/12,355.54
  6. Step 6: Final answer
    x = 5,384.49

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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.