Home / 8,628.18-12,910.05-7,226.70

Finding the Fourth Proportional to 8,628.18, 12,910.05 and 7,226.70

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Solution

The fourth proportional to 8,628.18, 12,910.05 and 7,226.70 is: 10,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.18 : 12,910.05 = 7,226.70 : x
  2. Step 2: Convert to fraction form
    8,628.18/12,910.05 = 7,226.70/x
  3. Step 3: Cross multiply
    8,628.18x = 12,910.05 × 7,226.70
  4. Step 4: Simplify right side
    8,628.18x = 93,297,058.34
  5. Step 5: Solve for x
    x = 93,297,058.34/8,628.18
  6. Step 6: Final answer
    x = 10,813.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.