Home / 12,617.54-18,928.53-5,217.85

Finding the Fourth Proportional to 12,617.54, 18,928.53 and 5,217.85

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Solution

The fourth proportional to 12,617.54, 18,928.53 and 5,217.85 is: 7,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.54 : 18,928.53 = 5,217.85 : x
  2. Step 2: Convert to fraction form
    12,617.54/18,928.53 = 5,217.85/x
  3. Step 3: Cross multiply
    12,617.54x = 18,928.53 × 5,217.85
  4. Step 4: Simplify right side
    12,617.54x = 98,766,230.26
  5. Step 5: Solve for x
    x = 98,766,230.26/12,617.54
  6. Step 6: Final answer
    x = 7,827.69

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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.