Home / 12,140.67-18,177.09-6,204.78

Finding the Fourth Proportional to 12,140.67, 18,177.09 and 6,204.78

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Solution

The fourth proportional to 12,140.67, 18,177.09 and 6,204.78 is: 9,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.67 : 18,177.09 = 6,204.78 : x
  2. Step 2: Convert to fraction form
    12,140.67/18,177.09 = 6,204.78/x
  3. Step 3: Cross multiply
    12,140.67x = 18,177.09 × 6,204.78
  4. Step 4: Simplify right side
    12,140.67x = 112,784,844.49
  5. Step 5: Solve for x
    x = 112,784,844.49/12,140.67
  6. Step 6: Final answer
    x = 9,289.84

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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.