Home / 11,521.87-15,895.82-6,740.29

Finding the Fourth Proportional to 11,521.87, 15,895.82 and 6,740.29

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Solution

The fourth proportional to 11,521.87, 15,895.82 and 6,740.29 is: 9,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.87 : 15,895.82 = 6,740.29 : x
  2. Step 2: Convert to fraction form
    11,521.87/15,895.82 = 6,740.29/x
  3. Step 3: Cross multiply
    11,521.87x = 15,895.82 × 6,740.29
  4. Step 4: Simplify right side
    11,521.87x = 107,142,413.70
  5. Step 5: Solve for x
    x = 107,142,413.70/11,521.87
  6. Step 6: Final answer
    x = 9,299.05

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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.