Home / 19,079.49-26,326.30-11,520.75

Finding the Fourth Proportional to 19,079.49, 26,326.30 and 11,520.75

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Solution

The fourth proportional to 19,079.49, 26,326.30 and 11,520.75 is: 15,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.49 : 26,326.30 = 11,520.75 : x
  2. Step 2: Convert to fraction form
    19,079.49/26,326.30 = 11,520.75/x
  3. Step 3: Cross multiply
    19,079.49x = 26,326.30 × 11,520.75
  4. Step 4: Simplify right side
    19,079.49x = 303,298,778.69
  5. Step 5: Solve for x
    x = 303,298,778.69/19,079.49
  6. Step 6: Final answer
    x = 15,896.59

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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.