Home / 15,222.69-21,007.44-8,508.42

Finding the Fourth Proportional to 15,222.69, 21,007.44 and 8,508.42

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Solution

The fourth proportional to 15,222.69, 21,007.44 and 8,508.42 is: 11,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.69 : 21,007.44 = 8,508.42 : x
  2. Step 2: Convert to fraction form
    15,222.69/21,007.44 = 8,508.42/x
  3. Step 3: Cross multiply
    15,222.69x = 21,007.44 × 8,508.42
  4. Step 4: Simplify right side
    15,222.69x = 178,740,122.64
  5. Step 5: Solve for x
    x = 178,740,122.64/15,222.69
  6. Step 6: Final answer
    x = 11,741.69

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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.