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Finding the Fourth Proportional to 8,856.68, 13,267.74 and 6,899.72

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Solution

The fourth proportional to 8,856.68, 13,267.74 and 6,899.72 is: 10,336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.68 : 13,267.74 = 6,899.72 : x
  2. Step 2: Convert to fraction form
    8,856.68/13,267.74 = 6,899.72/x
  3. Step 3: Cross multiply
    8,856.68x = 13,267.74 × 6,899.72
  4. Step 4: Simplify right side
    8,856.68x = 91,543,691.03
  5. Step 5: Solve for x
    x = 91,543,691.03/8,856.68
  6. Step 6: Final answer
    x = 10,336.12

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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.