Home / 12,177.42-18,269.10-3,412.20

Finding the Fourth Proportional to 12,177.42, 18,269.10 and 3,412.20

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Solution

The fourth proportional to 12,177.42, 18,269.10 and 3,412.20 is: 5,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.42 : 18,269.10 = 3,412.20 : x
  2. Step 2: Convert to fraction form
    12,177.42/18,269.10 = 3,412.20/x
  3. Step 3: Cross multiply
    12,177.42x = 18,269.10 × 3,412.20
  4. Step 4: Simplify right side
    12,177.42x = 62,337,823.02
  5. Step 5: Solve for x
    x = 62,337,823.02/12,177.42
  6. Step 6: Final answer
    x = 5,119.13

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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.