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Finding the Fourth Proportional to 12,524.64, 18,758.08 and 8,992.72

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Solution

The fourth proportional to 12,524.64, 18,758.08 and 8,992.72 is: 13,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,524.64 : 18,758.08 = 8,992.72 : x
  2. Step 2: Convert to fraction form
    12,524.64/18,758.08 = 8,992.72/x
  3. Step 3: Cross multiply
    12,524.64x = 18,758.08 × 8,992.72
  4. Step 4: Simplify right side
    12,524.64x = 168,686,161.18
  5. Step 5: Solve for x
    x = 168,686,161.18/12,524.64
  6. Step 6: Final answer
    x = 13,468.34

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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.