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Finding the Fourth Proportional to 13,884.60, 19,167.04 and 8,855.60

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Solution

The fourth proportional to 13,884.60, 19,167.04 and 8,855.60 is: 12,224.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.60 : 19,167.04 = 8,855.60 : x
  2. Step 2: Convert to fraction form
    13,884.60/19,167.04 = 8,855.60/x
  3. Step 3: Cross multiply
    13,884.60x = 19,167.04 × 8,855.60
  4. Step 4: Simplify right side
    13,884.60x = 169,735,639.42
  5. Step 5: Solve for x
    x = 169,735,639.42/13,884.60
  6. Step 6: Final answer
    x = 12,224.74

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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.