Home / 11,920.95-17,887.50-4,906.35

Finding the Fourth Proportional to 11,920.95, 17,887.50 and 4,906.35

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Solution

The fourth proportional to 11,920.95, 17,887.50 and 4,906.35 is: 7,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.95 : 17,887.50 = 4,906.35 : x
  2. Step 2: Convert to fraction form
    11,920.95/17,887.50 = 4,906.35/x
  3. Step 3: Cross multiply
    11,920.95x = 17,887.50 × 4,906.35
  4. Step 4: Simplify right side
    11,920.95x = 87,762,335.63
  5. Step 5: Solve for x
    x = 87,762,335.63/11,920.95
  6. Step 6: Final answer
    x = 7,362.03

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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.