Home / 8,989.56-13,511.25-7,439.52

Finding the Fourth Proportional to 8,989.56, 13,511.25 and 7,439.52

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Solution

The fourth proportional to 8,989.56, 13,511.25 and 7,439.52 is: 11,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.56 : 13,511.25 = 7,439.52 : x
  2. Step 2: Convert to fraction form
    8,989.56/13,511.25 = 7,439.52/x
  3. Step 3: Cross multiply
    8,989.56x = 13,511.25 × 7,439.52
  4. Step 4: Simplify right side
    8,989.56x = 100,517,214.60
  5. Step 5: Solve for x
    x = 100,517,214.60/8,989.56
  6. Step 6: Final answer
    x = 11,181.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.