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Finding the Fourth Proportional to 9,900.09, 14,850 and 3,325.32

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Solution

The fourth proportional to 9,900.09, 14,850 and 3,325.32 is: 4,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.09 : 14,850 = 3,325.32 : x
  2. Step 2: Convert to fraction form
    9,900.09/14,850 = 3,325.32/x
  3. Step 3: Cross multiply
    9,900.09x = 14,850 × 3,325.32
  4. Step 4: Simplify right side
    9,900.09x = 49,381,002
  5. Step 5: Solve for x
    x = 49,381,002/9,900.09
  6. Step 6: Final answer
    x = 4,987.93

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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.