Home / 15,226.58-21,013.73-8,512.09

Finding the Fourth Proportional to 15,226.58, 21,013.73 and 8,512.09

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Solution

The fourth proportional to 15,226.58, 21,013.73 and 8,512.09 is: 11,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.58 : 21,013.73 = 8,512.09 : x
  2. Step 2: Convert to fraction form
    15,226.58/21,013.73 = 8,512.09/x
  3. Step 3: Cross multiply
    15,226.58x = 21,013.73 × 8,512.09
  4. Step 4: Simplify right side
    15,226.58x = 178,870,697.82
  5. Step 5: Solve for x
    x = 178,870,697.82/15,226.58
  6. Step 6: Final answer
    x = 11,747.26

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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.