Home / 11,424.19-15,766.17-6,388.31

Finding the Fourth Proportional to 11,424.19, 15,766.17 and 6,388.31

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Solution

The fourth proportional to 11,424.19, 15,766.17 and 6,388.31 is: 8,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.19 : 15,766.17 = 6,388.31 : x
  2. Step 2: Convert to fraction form
    11,424.19/15,766.17 = 6,388.31/x
  3. Step 3: Cross multiply
    11,424.19x = 15,766.17 × 6,388.31
  4. Step 4: Simplify right side
    11,424.19x = 100,719,181.47
  5. Step 5: Solve for x
    x = 100,719,181.47/11,424.19
  6. Step 6: Final answer
    x = 8,816.31

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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.