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Finding the Fourth Proportional to 9,910.84, 14,836.95 and 8,680.66

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Solution

The fourth proportional to 9,910.84, 14,836.95 and 8,680.66 is: 12,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.84 : 14,836.95 = 8,680.66 : x
  2. Step 2: Convert to fraction form
    9,910.84/14,836.95 = 8,680.66/x
  3. Step 3: Cross multiply
    9,910.84x = 14,836.95 × 8,680.66
  4. Step 4: Simplify right side
    9,910.84x = 128,794,518.39
  5. Step 5: Solve for x
    x = 128,794,518.39/9,910.84
  6. Step 6: Final answer
    x = 12,995.32

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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.