Home / 8,919.72-12,306.23-5,141.58

Finding the Fourth Proportional to 8,919.72, 12,306.23 and 5,141.58

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Solution

The fourth proportional to 8,919.72, 12,306.23 and 5,141.58 is: 7,093.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.72 : 12,306.23 = 5,141.58 : x
  2. Step 2: Convert to fraction form
    8,919.72/12,306.23 = 5,141.58/x
  3. Step 3: Cross multiply
    8,919.72x = 12,306.23 × 5,141.58
  4. Step 4: Simplify right side
    8,919.72x = 63,273,413.47
  5. Step 5: Solve for x
    x = 63,273,413.47/8,919.72
  6. Step 6: Final answer
    x = 7,093.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.