Home / 10,944.40-16,416.60-7,661.20

Finding the Fourth Proportional to 10,944.40, 16,416.60 and 7,661.20

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Solution

The fourth proportional to 10,944.40, 16,416.60 and 7,661.20 is: 11,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,944.40 : 16,416.60 = 7,661.20 : x
  2. Step 2: Convert to fraction form
    10,944.40/16,416.60 = 7,661.20/x
  3. Step 3: Cross multiply
    10,944.40x = 16,416.60 × 7,661.20
  4. Step 4: Simplify right side
    10,944.40x = 125,770,855.92
  5. Step 5: Solve for x
    x = 125,770,855.92/10,944.40
  6. Step 6: Final answer
    x = 11,491.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.