Home / 11,928.11-17,897.22-6,380

Finding the Fourth Proportional to 11,928.11, 17,897.22 and 6,380

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Solution

The fourth proportional to 11,928.11, 17,897.22 and 6,380 is: 9,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.11 : 17,897.22 = 6,380 : x
  2. Step 2: Convert to fraction form
    11,928.11/17,897.22 = 6,380/x
  3. Step 3: Cross multiply
    11,928.11x = 17,897.22 × 6,380
  4. Step 4: Simplify right side
    11,928.11x = 114,184,263.60
  5. Step 5: Solve for x
    x = 114,184,263.60/11,928.11
  6. Step 6: Final answer
    x = 9,572.70

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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.