Home / 8,753.40-13,115.70-7,284.60

Finding the Fourth Proportional to 8,753.40, 13,115.70 and 7,284.60

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Solution

The fourth proportional to 8,753.40, 13,115.70 and 7,284.60 is: 10,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.40 : 13,115.70 = 7,284.60 : x
  2. Step 2: Convert to fraction form
    8,753.40/13,115.70 = 7,284.60/x
  3. Step 3: Cross multiply
    8,753.40x = 13,115.70 × 7,284.60
  4. Step 4: Simplify right side
    8,753.40x = 95,542,628.22
  5. Step 5: Solve for x
    x = 95,542,628.22/8,753.40
  6. Step 6: Final answer
    x = 10,914.92

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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.