Home / 18,139.83-27,201.54-6,453.36

Finding the Fourth Proportional to 18,139.83, 27,201.54 and 6,453.36

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Solution

The fourth proportional to 18,139.83, 27,201.54 and 6,453.36 is: 9,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.83 : 27,201.54 = 6,453.36 : x
  2. Step 2: Convert to fraction form
    18,139.83/27,201.54 = 6,453.36/x
  3. Step 3: Cross multiply
    18,139.83x = 27,201.54 × 6,453.36
  4. Step 4: Simplify right side
    18,139.83x = 175,541,330.17
  5. Step 5: Solve for x
    x = 175,541,330.17/18,139.83
  6. Step 6: Final answer
    x = 9,677.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.