Home / 8,160.48-11,251.56-6,899.28

Finding the Fourth Proportional to 8,160.48, 11,251.56 and 6,899.28

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Solution

The fourth proportional to 8,160.48, 11,251.56 and 6,899.28 is: 9,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.48 : 11,251.56 = 6,899.28 : x
  2. Step 2: Convert to fraction form
    8,160.48/11,251.56 = 6,899.28/x
  3. Step 3: Cross multiply
    8,160.48x = 11,251.56 × 6,899.28
  4. Step 4: Simplify right side
    8,160.48x = 77,627,662.88
  5. Step 5: Solve for x
    x = 77,627,662.88/8,160.48
  6. Step 6: Final answer
    x = 9,512.63

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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.