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Finding the Fourth Proportional to 7,319.97, 10,990.89 and 7,008.93

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Solution

The fourth proportional to 7,319.97, 10,990.89 and 7,008.93 is: 10,523.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.97 : 10,990.89 = 7,008.93 : x
  2. Step 2: Convert to fraction form
    7,319.97/10,990.89 = 7,008.93/x
  3. Step 3: Cross multiply
    7,319.97x = 10,990.89 × 7,008.93
  4. Step 4: Simplify right side
    7,319.97x = 77,034,378.65
  5. Step 5: Solve for x
    x = 77,034,378.65/7,319.97
  6. Step 6: Final answer
    x = 10,523.87

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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.