Home / 12,646.45-18,959.85-8,194.71

Finding the Fourth Proportional to 12,646.45, 18,959.85 and 8,194.71

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Solution

The fourth proportional to 12,646.45, 18,959.85 and 8,194.71 is: 12,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.45 : 18,959.85 = 8,194.71 : x
  2. Step 2: Convert to fraction form
    12,646.45/18,959.85 = 8,194.71/x
  3. Step 3: Cross multiply
    12,646.45x = 18,959.85 × 8,194.71
  4. Step 4: Simplify right side
    12,646.45x = 155,370,432.02
  5. Step 5: Solve for x
    x = 155,370,432.02/12,646.45
  6. Step 6: Final answer
    x = 12,285.69

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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.