Home / 11,878.20-16,413.62-11,301.77

Finding the Fourth Proportional to 11,878.20, 16,413.62 and 11,301.77

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Solution

The fourth proportional to 11,878.20, 16,413.62 and 11,301.77 is: 15,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.20 : 16,413.62 = 11,301.77 : x
  2. Step 2: Convert to fraction form
    11,878.20/16,413.62 = 11,301.77/x
  3. Step 3: Cross multiply
    11,878.20x = 16,413.62 × 11,301.77
  4. Step 4: Simplify right side
    11,878.20x = 185,502,819.53
  5. Step 5: Solve for x
    x = 185,502,819.53/11,878.20
  6. Step 6: Final answer
    x = 15,617.08

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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.