Home / 11,179.84-15,424.68-8,351.32

Finding the Fourth Proportional to 11,179.84, 15,424.68 and 8,351.32

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Solution

The fourth proportional to 11,179.84, 15,424.68 and 8,351.32 is: 11,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.84 : 15,424.68 = 8,351.32 : x
  2. Step 2: Convert to fraction form
    11,179.84/15,424.68 = 8,351.32/x
  3. Step 3: Cross multiply
    11,179.84x = 15,424.68 × 8,351.32
  4. Step 4: Simplify right side
    11,179.84x = 128,816,438.58
  5. Step 5: Solve for x
    x = 128,816,438.58/11,179.84
  6. Step 6: Final answer
    x = 11,522.21

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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.