Home / 8,157.48-11,247.38-6,896.36

Finding the Fourth Proportional to 8,157.48, 11,247.38 and 6,896.36

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Solution

The fourth proportional to 8,157.48, 11,247.38 and 6,896.36 is: 9,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.48 : 11,247.38 = 6,896.36 : x
  2. Step 2: Convert to fraction form
    8,157.48/11,247.38 = 6,896.36/x
  3. Step 3: Cross multiply
    8,157.48x = 11,247.38 × 6,896.36
  4. Step 4: Simplify right side
    8,157.48x = 77,565,981.54
  5. Step 5: Solve for x
    x = 77,565,981.54/8,157.48
  6. Step 6: Final answer
    x = 9,508.57

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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.