Home / 8,835.87-13,249.58-5,139.09

Finding the Fourth Proportional to 8,835.87, 13,249.58 and 5,139.09

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Solution

The fourth proportional to 8,835.87, 13,249.58 and 5,139.09 is: 7,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.87 : 13,249.58 = 5,139.09 : x
  2. Step 2: Convert to fraction form
    8,835.87/13,249.58 = 5,139.09/x
  3. Step 3: Cross multiply
    8,835.87x = 13,249.58 × 5,139.09
  4. Step 4: Simplify right side
    8,835.87x = 68,090,758.39
  5. Step 5: Solve for x
    x = 68,090,758.39/8,835.87
  6. Step 6: Final answer
    x = 7,706.17

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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.