Home / 13,608.84-20,411.08-5,292.66

Finding the Fourth Proportional to 13,608.84, 20,411.08 and 5,292.66

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Solution

The fourth proportional to 13,608.84, 20,411.08 and 5,292.66 is: 7,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.84 : 20,411.08 = 5,292.66 : x
  2. Step 2: Convert to fraction form
    13,608.84/20,411.08 = 5,292.66/x
  3. Step 3: Cross multiply
    13,608.84x = 20,411.08 × 5,292.66
  4. Step 4: Simplify right side
    13,608.84x = 108,028,906.67
  5. Step 5: Solve for x
    x = 108,028,906.67/13,608.84
  6. Step 6: Final answer
    x = 7,938.14

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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.