Home / 14,419.26-19,895.13-8,131.64

Finding the Fourth Proportional to 14,419.26, 19,895.13 and 8,131.64

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Solution

The fourth proportional to 14,419.26, 19,895.13 and 8,131.64 is: 11,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.26 : 19,895.13 = 8,131.64 : x
  2. Step 2: Convert to fraction form
    14,419.26/19,895.13 = 8,131.64/x
  3. Step 3: Cross multiply
    14,419.26x = 19,895.13 × 8,131.64
  4. Step 4: Simplify right side
    14,419.26x = 161,779,935.44
  5. Step 5: Solve for x
    x = 161,779,935.44/14,419.26
  6. Step 6: Final answer
    x = 11,219.71

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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.