Home / 12,133.30-18,175.65-8,196.70

Finding the Fourth Proportional to 12,133.30, 18,175.65 and 8,196.70

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Solution

The fourth proportional to 12,133.30, 18,175.65 and 8,196.70 is: 12,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.30 : 18,175.65 = 8,196.70 : x
  2. Step 2: Convert to fraction form
    12,133.30/18,175.65 = 8,196.70/x
  3. Step 3: Cross multiply
    12,133.30x = 18,175.65 × 8,196.70
  4. Step 4: Simplify right side
    12,133.30x = 148,980,350.36
  5. Step 5: Solve for x
    x = 148,980,350.36/12,133.30
  6. Step 6: Final answer
    x = 12,278.63

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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.