Home / 11,511.56-15,870.66-7,525.82

Finding the Fourth Proportional to 11,511.56, 15,870.66 and 7,525.82

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Solution

The fourth proportional to 11,511.56, 15,870.66 and 7,525.82 is: 10,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.56 : 15,870.66 = 7,525.82 : x
  2. Step 2: Convert to fraction form
    11,511.56/15,870.66 = 7,525.82/x
  3. Step 3: Cross multiply
    11,511.56x = 15,870.66 × 7,525.82
  4. Step 4: Simplify right side
    11,511.56x = 119,439,730.44
  5. Step 5: Solve for x
    x = 119,439,730.44/11,511.56
  6. Step 6: Final answer
    x = 10,375.63

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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.