Home / 12,204.10-18,309.59-3,439.09

Finding the Fourth Proportional to 12,204.10, 18,309.59 and 3,439.09

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Solution

The fourth proportional to 12,204.10, 18,309.59 and 3,439.09 is: 5,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.10 : 18,309.59 = 3,439.09 : x
  2. Step 2: Convert to fraction form
    12,204.10/18,309.59 = 3,439.09/x
  3. Step 3: Cross multiply
    12,204.10x = 18,309.59 × 3,439.09
  4. Step 4: Simplify right side
    12,204.10x = 62,968,327.87
  5. Step 5: Solve for x
    x = 62,968,327.87/12,204.10
  6. Step 6: Final answer
    x = 5,159.60

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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.