Home / 12,051.87-18,083.11-4,155.58

Finding the Fourth Proportional to 12,051.87, 18,083.11 and 4,155.58

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Solution

The fourth proportional to 12,051.87, 18,083.11 and 4,155.58 is: 6,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.87 : 18,083.11 = 4,155.58 : x
  2. Step 2: Convert to fraction form
    12,051.87/18,083.11 = 4,155.58/x
  3. Step 3: Cross multiply
    12,051.87x = 18,083.11 × 4,155.58
  4. Step 4: Simplify right side
    12,051.87x = 75,145,810.25
  5. Step 5: Solve for x
    x = 75,145,810.25/12,051.87
  6. Step 6: Final answer
    x = 6,235.20

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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.