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Finding the Fourth Proportional to 9,839.88, 14,759.82 and 4,649.40

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Solution

The fourth proportional to 9,839.88, 14,759.82 and 4,649.40 is: 6,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,839.88 : 14,759.82 = 4,649.40 : x
  2. Step 2: Convert to fraction form
    9,839.88/14,759.82 = 4,649.40/x
  3. Step 3: Cross multiply
    9,839.88x = 14,759.82 × 4,649.40
  4. Step 4: Simplify right side
    9,839.88x = 68,624,307.11
  5. Step 5: Solve for x
    x = 68,624,307.11/9,839.88
  6. Step 6: Final answer
    x = 6,974.10

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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.