Home / 15,955.78-22,017.39-9,243.57

Finding the Fourth Proportional to 15,955.78, 22,017.39 and 9,243.57

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Solution

The fourth proportional to 15,955.78, 22,017.39 and 9,243.57 is: 12,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.78 : 22,017.39 = 9,243.57 : x
  2. Step 2: Convert to fraction form
    15,955.78/22,017.39 = 9,243.57/x
  3. Step 3: Cross multiply
    15,955.78x = 22,017.39 × 9,243.57
  4. Step 4: Simplify right side
    15,955.78x = 203,519,285.68
  5. Step 5: Solve for x
    x = 203,519,285.68/15,955.78
  6. Step 6: Final answer
    x = 12,755.21

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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.