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Finding the Fourth Proportional to 11,296.40, 16,930.40 and 5,751.12

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Solution

The fourth proportional to 11,296.40, 16,930.40 and 5,751.12 is: 8,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.40 : 16,930.40 = 5,751.12 : x
  2. Step 2: Convert to fraction form
    11,296.40/16,930.40 = 5,751.12/x
  3. Step 3: Cross multiply
    11,296.40x = 16,930.40 × 5,751.12
  4. Step 4: Simplify right side
    11,296.40x = 97,368,762.05
  5. Step 5: Solve for x
    x = 97,368,762.05/11,296.40
  6. Step 6: Final answer
    x = 8,619.45

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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.