Home / 11,287.20-16,930.08-5,047.68

Finding the Fourth Proportional to 11,287.20, 16,930.08 and 5,047.68

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Solution

The fourth proportional to 11,287.20, 16,930.08 and 5,047.68 is: 7,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.20 : 16,930.08 = 5,047.68 : x
  2. Step 2: Convert to fraction form
    11,287.20/16,930.08 = 5,047.68/x
  3. Step 3: Cross multiply
    11,287.20x = 16,930.08 × 5,047.68
  4. Step 4: Simplify right side
    11,287.20x = 85,457,626.21
  5. Step 5: Solve for x
    x = 85,457,626.21/11,287.20
  6. Step 6: Final answer
    x = 7,571.20

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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.