Home / 8,157.57-11,262.11-5,371.17

Finding the Fourth Proportional to 8,157.57, 11,262.11 and 5,371.17

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Solution

The fourth proportional to 8,157.57, 11,262.11 and 5,371.17 is: 7,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.57 : 11,262.11 = 5,371.17 : x
  2. Step 2: Convert to fraction form
    8,157.57/11,262.11 = 5,371.17/x
  3. Step 3: Cross multiply
    8,157.57x = 11,262.11 × 5,371.17
  4. Step 4: Simplify right side
    8,157.57x = 60,490,707.37
  5. Step 5: Solve for x
    x = 60,490,707.37/8,157.57
  6. Step 6: Final answer
    x = 7,415.29

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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.