Home / 12,186.24-18,280.97-3,421.23

Finding the Fourth Proportional to 12,186.24, 18,280.97 and 3,421.23

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Solution

The fourth proportional to 12,186.24, 18,280.97 and 3,421.23 is: 5,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.24 : 18,280.97 = 3,421.23 : x
  2. Step 2: Convert to fraction form
    12,186.24/18,280.97 = 3,421.23/x
  3. Step 3: Cross multiply
    12,186.24x = 18,280.97 × 3,421.23
  4. Step 4: Simplify right side
    12,186.24x = 62,543,402.99
  5. Step 5: Solve for x
    x = 62,543,402.99/12,186.24
  6. Step 6: Final answer
    x = 5,132.30

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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.