Home / 11,685.52-16,125.87-6,380.47

Finding the Fourth Proportional to 11,685.52, 16,125.87 and 6,380.47

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Solution

The fourth proportional to 11,685.52, 16,125.87 and 6,380.47 is: 8,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.52 : 16,125.87 = 6,380.47 : x
  2. Step 2: Convert to fraction form
    11,685.52/16,125.87 = 6,380.47/x
  3. Step 3: Cross multiply
    11,685.52x = 16,125.87 × 6,380.47
  4. Step 4: Simplify right side
    11,685.52x = 102,890,629.76
  5. Step 5: Solve for x
    x = 102,890,629.76/11,685.52
  6. Step 6: Final answer
    x = 8,804.97

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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.