Home / 12,177.68-18,266.36-6,979.84

Finding the Fourth Proportional to 12,177.68, 18,266.36 and 6,979.84

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Solution

The fourth proportional to 12,177.68, 18,266.36 and 6,979.84 is: 10,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.68 : 18,266.36 = 6,979.84 : x
  2. Step 2: Convert to fraction form
    12,177.68/18,266.36 = 6,979.84/x
  3. Step 3: Cross multiply
    12,177.68x = 18,266.36 × 6,979.84
  4. Step 4: Simplify right side
    12,177.68x = 127,496,270.18
  5. Step 5: Solve for x
    x = 127,496,270.18/12,177.68
  6. Step 6: Final answer
    x = 10,469.67

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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.