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Finding the Fourth Proportional to 14,488.30, 21,735.60 and 8,251.30

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Solution

The fourth proportional to 14,488.30, 21,735.60 and 8,251.30 is: 12,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.30 : 21,735.60 = 8,251.30 : x
  2. Step 2: Convert to fraction form
    14,488.30/21,735.60 = 8,251.30/x
  3. Step 3: Cross multiply
    14,488.30x = 21,735.60 × 8,251.30
  4. Step 4: Simplify right side
    14,488.30x = 179,346,956.28
  5. Step 5: Solve for x
    x = 179,346,956.28/14,488.30
  6. Step 6: Final answer
    x = 12,378.74

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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.