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Finding the Fourth Proportional to 14,248.39, 19,662.39 and 7,960.77

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Solution

The fourth proportional to 14,248.39, 19,662.39 and 7,960.77 is: 10,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.39 : 19,662.39 = 7,960.77 : x
  2. Step 2: Convert to fraction form
    14,248.39/19,662.39 = 7,960.77/x
  3. Step 3: Cross multiply
    14,248.39x = 19,662.39 × 7,960.77
  4. Step 4: Simplify right side
    14,248.39x = 156,527,764.44
  5. Step 5: Solve for x
    x = 156,527,764.44/14,248.39
  6. Step 6: Final answer
    x = 10,985.65

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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.