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Finding the Fourth Proportional to 9,900.39, 14,850.74 and 3,326.63

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Solution

The fourth proportional to 9,900.39, 14,850.74 and 3,326.63 is: 4,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.39 : 14,850.74 = 3,326.63 : x
  2. Step 2: Convert to fraction form
    9,900.39/14,850.74 = 3,326.63/x
  3. Step 3: Cross multiply
    9,900.39x = 14,850.74 × 3,326.63
  4. Step 4: Simplify right side
    9,900.39x = 49,402,917.21
  5. Step 5: Solve for x
    x = 49,402,917.21/9,900.39
  6. Step 6: Final answer
    x = 4,990.00

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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.