Home / 11,172.78-16,767.27-9,007.65

Finding the Fourth Proportional to 11,172.78, 16,767.27 and 9,007.65

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Solution

The fourth proportional to 11,172.78, 16,767.27 and 9,007.65 is: 13,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.78 : 16,767.27 = 9,007.65 : x
  2. Step 2: Convert to fraction form
    11,172.78/16,767.27 = 9,007.65/x
  3. Step 3: Cross multiply
    11,172.78x = 16,767.27 × 9,007.65
  4. Step 4: Simplify right side
    11,172.78x = 151,033,699.62
  5. Step 5: Solve for x
    x = 151,033,699.62/11,172.78
  6. Step 6: Final answer
    x = 13,518.01

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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.