Home / 11,818.68-16,309.78-6,513.44

Finding the Fourth Proportional to 11,818.68, 16,309.78 and 6,513.44

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Solution

The fourth proportional to 11,818.68, 16,309.78 and 6,513.44 is: 8,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.68 : 16,309.78 = 6,513.44 : x
  2. Step 2: Convert to fraction form
    11,818.68/16,309.78 = 6,513.44/x
  3. Step 3: Cross multiply
    11,818.68x = 16,309.78 × 6,513.44
  4. Step 4: Simplify right side
    11,818.68x = 106,232,773.44
  5. Step 5: Solve for x
    x = 106,232,773.44/11,818.68
  6. Step 6: Final answer
    x = 8,988.55

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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.