Home / 12,204.36-18,312.30-12,007.80

Finding the Fourth Proportional to 12,204.36, 18,312.30 and 12,007.80

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Solution

The fourth proportional to 12,204.36, 18,312.30 and 12,007.80 is: 18,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.36 : 18,312.30 = 12,007.80 : x
  2. Step 2: Convert to fraction form
    12,204.36/18,312.30 = 12,007.80/x
  3. Step 3: Cross multiply
    12,204.36x = 18,312.30 × 12,007.80
  4. Step 4: Simplify right side
    12,204.36x = 219,890,435.94
  5. Step 5: Solve for x
    x = 219,890,435.94/12,204.36
  6. Step 6: Final answer
    x = 18,017.37

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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.