Home / 11,188.20-15,440.52-6,711.84

Finding the Fourth Proportional to 11,188.20, 15,440.52 and 6,711.84

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Solution

The fourth proportional to 11,188.20, 15,440.52 and 6,711.84 is: 9,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.20 : 15,440.52 = 6,711.84 : x
  2. Step 2: Convert to fraction form
    11,188.20/15,440.52 = 6,711.84/x
  3. Step 3: Cross multiply
    11,188.20x = 15,440.52 × 6,711.84
  4. Step 4: Simplify right side
    11,188.20x = 103,634,299.76
  5. Step 5: Solve for x
    x = 103,634,299.76/11,188.20
  6. Step 6: Final answer
    x = 9,262.82

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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.