Home / 8,486.87-12,705.66-5,522.09

Finding the Fourth Proportional to 8,486.87, 12,705.66 and 5,522.09

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Solution

The fourth proportional to 8,486.87, 12,705.66 and 5,522.09 is: 8,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.87 : 12,705.66 = 5,522.09 : x
  2. Step 2: Convert to fraction form
    8,486.87/12,705.66 = 5,522.09/x
  3. Step 3: Cross multiply
    8,486.87x = 12,705.66 × 5,522.09
  4. Step 4: Simplify right side
    8,486.87x = 70,161,734.50
  5. Step 5: Solve for x
    x = 70,161,734.50/8,486.87
  6. Step 6: Final answer
    x = 8,267.10

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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.