Home / 10,811.39-14,921.15-6,336.90

Finding the Fourth Proportional to 10,811.39, 14,921.15 and 6,336.90

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Solution

The fourth proportional to 10,811.39, 14,921.15 and 6,336.90 is: 8,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.39 : 14,921.15 = 6,336.90 : x
  2. Step 2: Convert to fraction form
    10,811.39/14,921.15 = 6,336.90/x
  3. Step 3: Cross multiply
    10,811.39x = 14,921.15 × 6,336.90
  4. Step 4: Simplify right side
    10,811.39x = 94,553,803.75
  5. Step 5: Solve for x
    x = 94,553,803.75/10,811.39
  6. Step 6: Final answer
    x = 8,745.76

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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.