Home / 19,080.45-26,331.71-11,121.39

Finding the Fourth Proportional to 19,080.45, 26,331.71 and 11,121.39

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Solution

The fourth proportional to 19,080.45, 26,331.71 and 11,121.39 is: 15,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.45 : 26,331.71 = 11,121.39 : x
  2. Step 2: Convert to fraction form
    19,080.45/26,331.71 = 11,121.39/x
  3. Step 3: Cross multiply
    19,080.45x = 26,331.71 × 11,121.39
  4. Step 4: Simplify right side
    19,080.45x = 292,845,160.67
  5. Step 5: Solve for x
    x = 292,845,160.67/19,080.45
  6. Step 6: Final answer
    x = 15,347.92

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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.