Home / 9,511.92-13,121.73-5,531.58

Finding the Fourth Proportional to 9,511.92, 13,121.73 and 5,531.58

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Solution

The fourth proportional to 9,511.92, 13,121.73 and 5,531.58 is: 7,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.92 : 13,121.73 = 5,531.58 : x
  2. Step 2: Convert to fraction form
    9,511.92/13,121.73 = 5,531.58/x
  3. Step 3: Cross multiply
    9,511.92x = 13,121.73 × 5,531.58
  4. Step 4: Simplify right side
    9,511.92x = 72,583,899.23
  5. Step 5: Solve for x
    x = 72,583,899.23/9,511.92
  6. Step 6: Final answer
    x = 7,630.84

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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.