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Finding the Fourth Proportional to 9,907, 14,857.06 and 2,885.12

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Solution

The fourth proportional to 9,907, 14,857.06 and 2,885.12 is: 4,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907 : 14,857.06 = 2,885.12 : x
  2. Step 2: Convert to fraction form
    9,907/14,857.06 = 2,885.12/x
  3. Step 3: Cross multiply
    9,907x = 14,857.06 × 2,885.12
  4. Step 4: Simplify right side
    9,907x = 42,864,400.95
  5. Step 5: Solve for x
    x = 42,864,400.95/9,907
  6. Step 6: Final answer
    x = 4,326.68

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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.