Home / 14,139.56-19,514.32-8,171.28

Finding the Fourth Proportional to 14,139.56, 19,514.32 and 8,171.28

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Solution

The fourth proportional to 14,139.56, 19,514.32 and 8,171.28 is: 11,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.56 : 19,514.32 = 8,171.28 : x
  2. Step 2: Convert to fraction form
    14,139.56/19,514.32 = 8,171.28/x
  3. Step 3: Cross multiply
    14,139.56x = 19,514.32 × 8,171.28
  4. Step 4: Simplify right side
    14,139.56x = 159,456,952.30
  5. Step 5: Solve for x
    x = 159,456,952.30/14,139.56
  6. Step 6: Final answer
    x = 11,277.36

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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.