Home / 14,877.72-20,531.84-8,163.63

Finding the Fourth Proportional to 14,877.72, 20,531.84 and 8,163.63

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Solution

The fourth proportional to 14,877.72, 20,531.84 and 8,163.63 is: 11,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.72 : 20,531.84 = 8,163.63 : x
  2. Step 2: Convert to fraction form
    14,877.72/20,531.84 = 8,163.63/x
  3. Step 3: Cross multiply
    14,877.72x = 20,531.84 × 8,163.63
  4. Step 4: Simplify right side
    14,877.72x = 167,614,304.16
  5. Step 5: Solve for x
    x = 167,614,304.16/14,877.72
  6. Step 6: Final answer
    x = 11,266.13

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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.