Home / 12,356.10-18,535.95-3,589.87

Finding the Fourth Proportional to 12,356.10, 18,535.95 and 3,589.87

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Solution

The fourth proportional to 12,356.10, 18,535.95 and 3,589.87 is: 5,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.10 : 18,535.95 = 3,589.87 : x
  2. Step 2: Convert to fraction form
    12,356.10/18,535.95 = 3,589.87/x
  3. Step 3: Cross multiply
    12,356.10x = 18,535.95 × 3,589.87
  4. Step 4: Simplify right side
    12,356.10x = 66,541,650.83
  5. Step 5: Solve for x
    x = 66,541,650.83/12,356.10
  6. Step 6: Final answer
    x = 5,385.33

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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.