Home / 11,990.28-16,545.38-6,684.60

Finding the Fourth Proportional to 11,990.28, 16,545.38 and 6,684.60

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Solution

The fourth proportional to 11,990.28, 16,545.38 and 6,684.60 is: 9,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.28 : 16,545.38 = 6,684.60 : x
  2. Step 2: Convert to fraction form
    11,990.28/16,545.38 = 6,684.60/x
  3. Step 3: Cross multiply
    11,990.28x = 16,545.38 × 6,684.60
  4. Step 4: Simplify right side
    11,990.28x = 110,599,247.15
  5. Step 5: Solve for x
    x = 110,599,247.15/11,990.28
  6. Step 6: Final answer
    x = 9,224.08

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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.