Home / 12,480.70-17,226.06-8,511.28

Finding the Fourth Proportional to 12,480.70, 17,226.06 and 8,511.28

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Solution

The fourth proportional to 12,480.70, 17,226.06 and 8,511.28 is: 11,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.70 : 17,226.06 = 8,511.28 : x
  2. Step 2: Convert to fraction form
    12,480.70/17,226.06 = 8,511.28/x
  3. Step 3: Cross multiply
    12,480.70x = 17,226.06 × 8,511.28
  4. Step 4: Simplify right side
    12,480.70x = 146,615,819.96
  5. Step 5: Solve for x
    x = 146,615,819.96/12,480.70
  6. Step 6: Final answer
    x = 11,747.40

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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.