Home / 12,555.94-18,833.89-5,155.18

Finding the Fourth Proportional to 12,555.94, 18,833.89 and 5,155.18

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Solution

The fourth proportional to 12,555.94, 18,833.89 and 5,155.18 is: 7,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.94 : 18,833.89 = 5,155.18 : x
  2. Step 2: Convert to fraction form
    12,555.94/18,833.89 = 5,155.18/x
  3. Step 3: Cross multiply
    12,555.94x = 18,833.89 × 5,155.18
  4. Step 4: Simplify right side
    12,555.94x = 97,092,093.05
  5. Step 5: Solve for x
    x = 97,092,093.05/12,555.94
  6. Step 6: Final answer
    x = 7,732.76

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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.