Home / 15,424.68-21,286.06-8,351.10

Finding the Fourth Proportional to 15,424.68, 21,286.06 and 8,351.10

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Solution

The fourth proportional to 15,424.68, 21,286.06 and 8,351.10 is: 11,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.68 : 21,286.06 = 8,351.10 : x
  2. Step 2: Convert to fraction form
    15,424.68/21,286.06 = 8,351.10/x
  3. Step 3: Cross multiply
    15,424.68x = 21,286.06 × 8,351.10
  4. Step 4: Simplify right side
    15,424.68x = 177,762,015.67
  5. Step 5: Solve for x
    x = 177,762,015.67/15,424.68
  6. Step 6: Final answer
    x = 11,524.52

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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.