Home / 11,122.69-15,349.31-6,154.69

Finding the Fourth Proportional to 11,122.69, 15,349.31 and 6,154.69

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Solution

The fourth proportional to 11,122.69, 15,349.31 and 6,154.69 is: 8,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.69 : 15,349.31 = 6,154.69 : x
  2. Step 2: Convert to fraction form
    11,122.69/15,349.31 = 6,154.69/x
  3. Step 3: Cross multiply
    11,122.69x = 15,349.31 × 6,154.69
  4. Step 4: Simplify right side
    11,122.69x = 94,470,198.70
  5. Step 5: Solve for x
    x = 94,470,198.70/11,122.69
  6. Step 6: Final answer
    x = 8,493.47

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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.