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Finding the Fourth Proportional to 6,997.17, 9,658.13 and 5,590.65

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Solution

The fourth proportional to 6,997.17, 9,658.13 and 5,590.65 is: 7,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,997.17 : 9,658.13 = 5,590.65 : x
  2. Step 2: Convert to fraction form
    6,997.17/9,658.13 = 5,590.65/x
  3. Step 3: Cross multiply
    6,997.17x = 9,658.13 × 5,590.65
  4. Step 4: Simplify right side
    6,997.17x = 53,995,196.53
  5. Step 5: Solve for x
    x = 53,995,196.53/6,997.17
  6. Step 6: Final answer
    x = 7,716.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.