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Finding the Fourth Proportional to 9,891.08, 14,826.10 and 6,770.21

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Solution

The fourth proportional to 9,891.08, 14,826.10 and 6,770.21 is: 10,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.08 : 14,826.10 = 6,770.21 : x
  2. Step 2: Convert to fraction form
    9,891.08/14,826.10 = 6,770.21/x
  3. Step 3: Cross multiply
    9,891.08x = 14,826.10 × 6,770.21
  4. Step 4: Simplify right side
    9,891.08x = 100,375,856.01
  5. Step 5: Solve for x
    x = 100,375,856.01/9,891.08
  6. Step 6: Final answer
    x = 10,148.12

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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.