Home / 7,117.88-10,665.68-5,360.85

Finding the Fourth Proportional to 7,117.88, 10,665.68 and 5,360.85

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Solution

The fourth proportional to 7,117.88, 10,665.68 and 5,360.85 is: 8,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.88 : 10,665.68 = 5,360.85 : x
  2. Step 2: Convert to fraction form
    7,117.88/10,665.68 = 5,360.85/x
  3. Step 3: Cross multiply
    7,117.88x = 10,665.68 × 5,360.85
  4. Step 4: Simplify right side
    7,117.88x = 57,177,083.82
  5. Step 5: Solve for x
    x = 57,177,083.82/7,117.88
  6. Step 6: Final answer
    x = 8,032.89

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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.