Home / 11,818.38-16,308.32-6,511.88

Finding the Fourth Proportional to 11,818.38, 16,308.32 and 6,511.88

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Solution

The fourth proportional to 11,818.38, 16,308.32 and 6,511.88 is: 8,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.38 : 16,308.32 = 6,511.88 : x
  2. Step 2: Convert to fraction form
    11,818.38/16,308.32 = 6,511.88/x
  3. Step 3: Cross multiply
    11,818.38x = 16,308.32 × 6,511.88
  4. Step 4: Simplify right side
    11,818.38x = 106,197,822.84
  5. Step 5: Solve for x
    x = 106,197,822.84/11,818.38
  6. Step 6: Final answer
    x = 8,985.82

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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.