Home / 12,634.61-18,951.86-9,863.63

Finding the Fourth Proportional to 12,634.61, 18,951.86 and 9,863.63

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Solution

The fourth proportional to 12,634.61, 18,951.86 and 9,863.63 is: 14,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.61 : 18,951.86 = 9,863.63 : x
  2. Step 2: Convert to fraction form
    12,634.61/18,951.86 = 9,863.63/x
  3. Step 3: Cross multiply
    12,634.61x = 18,951.86 × 9,863.63
  4. Step 4: Simplify right side
    12,634.61x = 186,934,064.75
  5. Step 5: Solve for x
    x = 186,934,064.75/12,634.61
  6. Step 6: Final answer
    x = 14,795.39

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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.