Home / 12,174.42-18,264.60-3,409.20

Finding the Fourth Proportional to 12,174.42, 18,264.60 and 3,409.20

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Solution

The fourth proportional to 12,174.42, 18,264.60 and 3,409.20 is: 5,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.42 : 18,264.60 = 3,409.20 : x
  2. Step 2: Convert to fraction form
    12,174.42/18,264.60 = 3,409.20/x
  3. Step 3: Cross multiply
    12,174.42x = 18,264.60 × 3,409.20
  4. Step 4: Simplify right side
    12,174.42x = 62,267,674.32
  5. Step 5: Solve for x
    x = 62,267,674.32/12,174.42
  6. Step 6: Final answer
    x = 5,114.63

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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.