Home / 13,378.43-20,070.59-5,481

Finding the Fourth Proportional to 13,378.43, 20,070.59 and 5,481

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Solution

The fourth proportional to 13,378.43, 20,070.59 and 5,481 is: 8,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.43 : 20,070.59 = 5,481 : x
  2. Step 2: Convert to fraction form
    13,378.43/20,070.59 = 5,481/x
  3. Step 3: Cross multiply
    13,378.43x = 20,070.59 × 5,481
  4. Step 4: Simplify right side
    13,378.43x = 110,006,876.39
  5. Step 5: Solve for x
    x = 110,006,876.39/13,378.43
  6. Step 6: Final answer
    x = 8,222.70

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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.