Home / 12,184.53-18,277.50-3,420.12

Finding the Fourth Proportional to 12,184.53, 18,277.50 and 3,420.12

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Solution

The fourth proportional to 12,184.53, 18,277.50 and 3,420.12 is: 5,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.53 : 18,277.50 = 3,420.12 : x
  2. Step 2: Convert to fraction form
    12,184.53/18,277.50 = 3,420.12/x
  3. Step 3: Cross multiply
    12,184.53x = 18,277.50 × 3,420.12
  4. Step 4: Simplify right side
    12,184.53x = 62,511,324.67
  5. Step 5: Solve for x
    x = 62,511,324.67/12,184.53
  6. Step 6: Final answer
    x = 5,130.39

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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.