Home / 7,789.68-11,669.40-6,917.04

Finding the Fourth Proportional to 7,789.68, 11,669.40 and 6,917.04

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Solution

The fourth proportional to 7,789.68, 11,669.40 and 6,917.04 is: 10,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.68 : 11,669.40 = 6,917.04 : x
  2. Step 2: Convert to fraction form
    7,789.68/11,669.40 = 6,917.04/x
  3. Step 3: Cross multiply
    7,789.68x = 11,669.40 × 6,917.04
  4. Step 4: Simplify right side
    7,789.68x = 80,717,706.58
  5. Step 5: Solve for x
    x = 80,717,706.58/7,789.68
  6. Step 6: Final answer
    x = 10,362.13

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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.