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Finding the Fourth Proportional to 8,856.44, 12,196.68 and 8,829.74

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Solution

The fourth proportional to 8,856.44, 12,196.68 and 8,829.74 is: 12,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.44 : 12,196.68 = 8,829.74 : x
  2. Step 2: Convert to fraction form
    8,856.44/12,196.68 = 8,829.74/x
  3. Step 3: Cross multiply
    8,856.44x = 12,196.68 × 8,829.74
  4. Step 4: Simplify right side
    8,856.44x = 107,693,513.26
  5. Step 5: Solve for x
    x = 107,693,513.26/8,856.44
  6. Step 6: Final answer
    x = 12,159.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.