Home / 18,285.47-27,422.61-7,755.29

Finding the Fourth Proportional to 18,285.47, 27,422.61 and 7,755.29

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Solution

The fourth proportional to 18,285.47, 27,422.61 and 7,755.29 is: 11,630.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.47 : 27,422.61 = 7,755.29 : x
  2. Step 2: Convert to fraction form
    18,285.47/27,422.61 = 7,755.29/x
  3. Step 3: Cross multiply
    18,285.47x = 27,422.61 × 7,755.29
  4. Step 4: Simplify right side
    18,285.47x = 212,670,155.99
  5. Step 5: Solve for x
    x = 212,670,155.99/18,285.47
  6. Step 6: Final answer
    x = 11,630.56

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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.