Home / 14,091.06-21,242.39-13,139.82

Finding the Fourth Proportional to 14,091.06, 21,242.39 and 13,139.82

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Solution

The fourth proportional to 14,091.06, 21,242.39 and 13,139.82 is: 19,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.06 : 21,242.39 = 13,139.82 : x
  2. Step 2: Convert to fraction form
    14,091.06/21,242.39 = 13,139.82/x
  3. Step 3: Cross multiply
    14,091.06x = 21,242.39 × 13,139.82
  4. Step 4: Simplify right side
    14,091.06x = 279,121,115.27
  5. Step 5: Solve for x
    x = 279,121,115.27/14,091.06
  6. Step 6: Final answer
    x = 19,808.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.