Home / 12,174.02-18,261.49-3,408.71

Finding the Fourth Proportional to 12,174.02, 18,261.49 and 3,408.71

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Solution

The fourth proportional to 12,174.02, 18,261.49 and 3,408.71 is: 5,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.02 : 18,261.49 = 3,408.71 : x
  2. Step 2: Convert to fraction form
    12,174.02/18,261.49 = 3,408.71/x
  3. Step 3: Cross multiply
    12,174.02x = 18,261.49 × 3,408.71
  4. Step 4: Simplify right side
    12,174.02x = 62,248,123.58
  5. Step 5: Solve for x
    x = 62,248,123.58/12,174.02
  6. Step 6: Final answer
    x = 5,113.19

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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.