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Finding the Fourth Proportional to 9,899.98, 14,851.68 and 3,326.80

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Solution

The fourth proportional to 9,899.98, 14,851.68 and 3,326.80 is: 4,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.98 : 14,851.68 = 3,326.80 : x
  2. Step 2: Convert to fraction form
    9,899.98/14,851.68 = 3,326.80/x
  3. Step 3: Cross multiply
    9,899.98x = 14,851.68 × 3,326.80
  4. Step 4: Simplify right side
    9,899.98x = 49,408,569.02
  5. Step 5: Solve for x
    x = 49,408,569.02/9,899.98
  6. Step 6: Final answer
    x = 4,990.77

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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.