Home / 12,285.24-18,429.04-3,963.28

Finding the Fourth Proportional to 12,285.24, 18,429.04 and 3,963.28

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Solution

The fourth proportional to 12,285.24, 18,429.04 and 3,963.28 is: 5,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.24 : 18,429.04 = 3,963.28 : x
  2. Step 2: Convert to fraction form
    12,285.24/18,429.04 = 3,963.28/x
  3. Step 3: Cross multiply
    12,285.24x = 18,429.04 × 3,963.28
  4. Step 4: Simplify right side
    12,285.24x = 73,039,445.65
  5. Step 5: Solve for x
    x = 73,039,445.65/12,285.24
  6. Step 6: Final answer
    x = 5,945.30

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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.