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Finding the Fourth Proportional to 8,899.98, 13,349.79 and 2,660.01

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Solution

The fourth proportional to 8,899.98, 13,349.79 and 2,660.01 is: 3,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.98 : 13,349.79 = 2,660.01 : x
  2. Step 2: Convert to fraction form
    8,899.98/13,349.79 = 2,660.01/x
  3. Step 3: Cross multiply
    8,899.98x = 13,349.79 × 2,660.01
  4. Step 4: Simplify right side
    8,899.98x = 35,510,574.90
  5. Step 5: Solve for x
    x = 35,510,574.90/8,899.98
  6. Step 6: Final answer
    x = 3,989.96

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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.