Home / 18,955.67-26,131.11-13,272.50

Finding the Fourth Proportional to 18,955.67, 26,131.11 and 13,272.50

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Solution

The fourth proportional to 18,955.67, 26,131.11 and 13,272.50 is: 18,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.67 : 26,131.11 = 13,272.50 : x
  2. Step 2: Convert to fraction form
    18,955.67/26,131.11 = 13,272.50/x
  3. Step 3: Cross multiply
    18,955.67x = 26,131.11 × 13,272.50
  4. Step 4: Simplify right side
    18,955.67x = 346,825,026.82
  5. Step 5: Solve for x
    x = 346,825,026.82/18,955.67
  6. Step 6: Final answer
    x = 18,296.64

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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.