Home / 14,877.66-20,531.15-8,163.30

Finding the Fourth Proportional to 14,877.66, 20,531.15 and 8,163.30

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Solution

The fourth proportional to 14,877.66, 20,531.15 and 8,163.30 is: 11,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.66 : 20,531.15 = 8,163.30 : x
  2. Step 2: Convert to fraction form
    14,877.66/20,531.15 = 8,163.30/x
  3. Step 3: Cross multiply
    14,877.66x = 20,531.15 × 8,163.30
  4. Step 4: Simplify right side
    14,877.66x = 167,601,934.01
  5. Step 5: Solve for x
    x = 167,601,934.01/14,877.66
  6. Step 6: Final answer
    x = 11,265.34

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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.