Home / 9,711.50-13,406.99-6,881.22

Finding the Fourth Proportional to 9,711.50, 13,406.99 and 6,881.22

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Solution

The fourth proportional to 9,711.50, 13,406.99 and 6,881.22 is: 9,499.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.50 : 13,406.99 = 6,881.22 : x
  2. Step 2: Convert to fraction form
    9,711.50/13,406.99 = 6,881.22/x
  3. Step 3: Cross multiply
    9,711.50x = 13,406.99 × 6,881.22
  4. Step 4: Simplify right side
    9,711.50x = 92,256,413.32
  5. Step 5: Solve for x
    x = 92,256,413.32/9,711.50
  6. Step 6: Final answer
    x = 9,499.71

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Double scale
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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.