Home / 8,111.13-12,157.35-3,664

Finding the Fourth Proportional to 8,111.13, 12,157.35 and 3,664

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Solution

The fourth proportional to 8,111.13, 12,157.35 and 3,664 is: 5,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.13 : 12,157.35 = 3,664 : x
  2. Step 2: Convert to fraction form
    8,111.13/12,157.35 = 3,664/x
  3. Step 3: Cross multiply
    8,111.13x = 12,157.35 × 3,664
  4. Step 4: Simplify right side
    8,111.13x = 44,544,530.40
  5. Step 5: Solve for x
    x = 44,544,530.40/8,111.13
  6. Step 6: Final answer
    x = 5,491.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.