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Finding the Fourth Proportional to 7,989.35, 11,924.88 and 7,496.87

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Solution

The fourth proportional to 7,989.35, 11,924.88 and 7,496.87 is: 11,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.35 : 11,924.88 = 7,496.87 : x
  2. Step 2: Convert to fraction form
    7,989.35/11,924.88 = 7,496.87/x
  3. Step 3: Cross multiply
    7,989.35x = 11,924.88 × 7,496.87
  4. Step 4: Simplify right side
    7,989.35x = 89,399,256.38
  5. Step 5: Solve for x
    x = 89,399,256.38/7,989.35
  6. Step 6: Final answer
    x = 11,189.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.