Home / 8,865.56-13,272.60-5,156.48

Finding the Fourth Proportional to 8,865.56, 13,272.60 and 5,156.48

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Solution

The fourth proportional to 8,865.56, 13,272.60 and 5,156.48 is: 7,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.56 : 13,272.60 = 5,156.48 : x
  2. Step 2: Convert to fraction form
    8,865.56/13,272.60 = 5,156.48/x
  3. Step 3: Cross multiply
    8,865.56x = 13,272.60 × 5,156.48
  4. Step 4: Simplify right side
    8,865.56x = 68,439,896.45
  5. Step 5: Solve for x
    x = 68,439,896.45/8,865.56
  6. Step 6: Final answer
    x = 7,719.75

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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.