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Finding the Fourth Proportional to 12,447.36, 18,694.08 and 9,866.88

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Solution

The fourth proportional to 12,447.36, 18,694.08 and 9,866.88 is: 14,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.36 : 18,694.08 = 9,866.88 : x
  2. Step 2: Convert to fraction form
    12,447.36/18,694.08 = 9,866.88/x
  3. Step 3: Cross multiply
    12,447.36x = 18,694.08 × 9,866.88
  4. Step 4: Simplify right side
    12,447.36x = 184,452,244.07
  5. Step 5: Solve for x
    x = 184,452,244.07/12,447.36
  6. Step 6: Final answer
    x = 14,818.58

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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.