Home / 8,157.48-11,247.36-6,896.28

Finding the Fourth Proportional to 8,157.48, 11,247.36 and 6,896.28

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Solution

The fourth proportional to 8,157.48, 11,247.36 and 6,896.28 is: 9,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.48 : 11,247.36 = 6,896.28 : x
  2. Step 2: Convert to fraction form
    8,157.48/11,247.36 = 6,896.28/x
  3. Step 3: Cross multiply
    8,157.48x = 11,247.36 × 6,896.28
  4. Step 4: Simplify right side
    8,157.48x = 77,564,943.82
  5. Step 5: Solve for x
    x = 77,564,943.82/8,157.48
  6. Step 6: Final answer
    x = 9,508.44

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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.