Home / 14,912.26-20,577.51-8,197.78

Finding the Fourth Proportional to 14,912.26, 20,577.51 and 8,197.78

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Solution

The fourth proportional to 14,912.26, 20,577.51 and 8,197.78 is: 11,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.26 : 20,577.51 = 8,197.78 : x
  2. Step 2: Convert to fraction form
    14,912.26/20,577.51 = 8,197.78/x
  3. Step 3: Cross multiply
    14,912.26x = 20,577.51 × 8,197.78
  4. Step 4: Simplify right side
    14,912.26x = 168,689,899.93
  5. Step 5: Solve for x
    x = 168,689,899.93/14,912.26
  6. Step 6: Final answer
    x = 11,312.16

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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.