Home / 11,511.11-15,885.41-6,475.29

Finding the Fourth Proportional to 11,511.11, 15,885.41 and 6,475.29

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Solution

The fourth proportional to 11,511.11, 15,885.41 and 6,475.29 is: 8,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.11 : 15,885.41 = 6,475.29 : x
  2. Step 2: Convert to fraction form
    11,511.11/15,885.41 = 6,475.29/x
  3. Step 3: Cross multiply
    11,511.11x = 15,885.41 × 6,475.29
  4. Step 4: Simplify right side
    11,511.11x = 102,862,620.33
  5. Step 5: Solve for x
    x = 102,862,620.33/11,511.11
  6. Step 6: Final answer
    x = 8,935.94

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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.