Home / 12,183.23-18,278.55-5,159.58

Finding the Fourth Proportional to 12,183.23, 18,278.55 and 5,159.58

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Solution

The fourth proportional to 12,183.23, 18,278.55 and 5,159.58 is: 7,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.23 : 18,278.55 = 5,159.58 : x
  2. Step 2: Convert to fraction form
    12,183.23/18,278.55 = 5,159.58/x
  3. Step 3: Cross multiply
    12,183.23x = 18,278.55 × 5,159.58
  4. Step 4: Simplify right side
    12,183.23x = 94,309,641.01
  5. Step 5: Solve for x
    x = 94,309,641.01/12,183.23
  6. Step 6: Final answer
    x = 7,740.94

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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.