Home / 7,813.12-11,727.78-5,234.08

Finding the Fourth Proportional to 7,813.12, 11,727.78 and 5,234.08

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Solution

The fourth proportional to 7,813.12, 11,727.78 and 5,234.08 is: 7,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.12 : 11,727.78 = 5,234.08 : x
  2. Step 2: Convert to fraction form
    7,813.12/11,727.78 = 5,234.08/x
  3. Step 3: Cross multiply
    7,813.12x = 11,727.78 × 5,234.08
  4. Step 4: Simplify right side
    7,813.12x = 61,384,053.93
  5. Step 5: Solve for x
    x = 61,384,053.93/7,813.12
  6. Step 6: Final answer
    x = 7,856.54

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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.