Home / 12,391.18-18,572.73-6,155.53

Finding the Fourth Proportional to 12,391.18, 18,572.73 and 6,155.53

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Solution

The fourth proportional to 12,391.18, 18,572.73 and 6,155.53 is: 9,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.18 : 18,572.73 = 6,155.53 : x
  2. Step 2: Convert to fraction form
    12,391.18/18,572.73 = 6,155.53/x
  3. Step 3: Cross multiply
    12,391.18x = 18,572.73 × 6,155.53
  4. Step 4: Simplify right side
    12,391.18x = 114,324,996.70
  5. Step 5: Solve for x
    x = 114,324,996.70/12,391.18
  6. Step 6: Final answer
    x = 9,226.32

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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.