Home / 8,147.60-11,227.56-5,783.12

Finding the Fourth Proportional to 8,147.60, 11,227.56 and 5,783.12

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Solution

The fourth proportional to 8,147.60, 11,227.56 and 5,783.12 is: 7,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.60 : 11,227.56 = 5,783.12 : x
  2. Step 2: Convert to fraction form
    8,147.60/11,227.56 = 5,783.12/x
  3. Step 3: Cross multiply
    8,147.60x = 11,227.56 × 5,783.12
  4. Step 4: Simplify right side
    8,147.60x = 64,930,326.79
  5. Step 5: Solve for x
    x = 64,930,326.79/8,147.60
  6. Step 6: Final answer
    x = 7,969.26

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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.