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Finding the Fourth Proportional to 7,986.66, 12,018.03 and 6,591.24

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Solution

The fourth proportional to 7,986.66, 12,018.03 and 6,591.24 is: 9,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.66 : 12,018.03 = 6,591.24 : x
  2. Step 2: Convert to fraction form
    7,986.66/12,018.03 = 6,591.24/x
  3. Step 3: Cross multiply
    7,986.66x = 12,018.03 × 6,591.24
  4. Step 4: Simplify right side
    7,986.66x = 79,213,720.06
  5. Step 5: Solve for x
    x = 79,213,720.06/7,986.66
  6. Step 6: Final answer
    x = 9,918.25

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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.