Home / 8,249.60-12,384.96-7,087.04

Finding the Fourth Proportional to 8,249.60, 12,384.96 and 7,087.04

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Solution

The fourth proportional to 8,249.60, 12,384.96 and 7,087.04 is: 10,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.60 : 12,384.96 = 7,087.04 : x
  2. Step 2: Convert to fraction form
    8,249.60/12,384.96 = 7,087.04/x
  3. Step 3: Cross multiply
    8,249.60x = 12,384.96 × 7,087.04
  4. Step 4: Simplify right side
    8,249.60x = 87,772,706.92
  5. Step 5: Solve for x
    x = 87,772,706.92/8,249.60
  6. Step 6: Final answer
    x = 10,639.63

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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.