Home / 10,989.54-15,168.33-6,276.60

Finding the Fourth Proportional to 10,989.54, 15,168.33 and 6,276.60

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Solution

The fourth proportional to 10,989.54, 15,168.33 and 6,276.60 is: 8,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.54 : 15,168.33 = 6,276.60 : x
  2. Step 2: Convert to fraction form
    10,989.54/15,168.33 = 6,276.60/x
  3. Step 3: Cross multiply
    10,989.54x = 15,168.33 × 6,276.60
  4. Step 4: Simplify right side
    10,989.54x = 95,205,540.08
  5. Step 5: Solve for x
    x = 95,205,540.08/10,989.54
  6. Step 6: Final answer
    x = 8,663.29

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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.