Home / 14,877.47-20,531.49-8,163.38

Finding the Fourth Proportional to 14,877.47, 20,531.49 and 8,163.38

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Solution

The fourth proportional to 14,877.47, 20,531.49 and 8,163.38 is: 11,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.47 : 20,531.49 = 8,163.38 : x
  2. Step 2: Convert to fraction form
    14,877.47/20,531.49 = 8,163.38/x
  3. Step 3: Cross multiply
    14,877.47x = 20,531.49 × 8,163.38
  4. Step 4: Simplify right side
    14,877.47x = 167,606,354.84
  5. Step 5: Solve for x
    x = 167,606,354.84/14,877.47
  6. Step 6: Final answer
    x = 11,265.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.