Home / 11,188.54-15,440.23-6,999.18

Finding the Fourth Proportional to 11,188.54, 15,440.23 and 6,999.18

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Solution

The fourth proportional to 11,188.54, 15,440.23 and 6,999.18 is: 9,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.54 : 15,440.23 = 6,999.18 : x
  2. Step 2: Convert to fraction form
    11,188.54/15,440.23 = 6,999.18/x
  3. Step 3: Cross multiply
    11,188.54x = 15,440.23 × 6,999.18
  4. Step 4: Simplify right side
    11,188.54x = 108,068,949.01
  5. Step 5: Solve for x
    x = 108,068,949.01/11,188.54
  6. Step 6: Final answer
    x = 9,658.90

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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.