Home / 15,938.37-21,993.93-9,969.75

Finding the Fourth Proportional to 15,938.37, 21,993.93 and 9,969.75

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Solution

The fourth proportional to 15,938.37, 21,993.93 and 9,969.75 is: 13,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.37 : 21,993.93 = 9,969.75 : x
  2. Step 2: Convert to fraction form
    15,938.37/21,993.93 = 9,969.75/x
  3. Step 3: Cross multiply
    15,938.37x = 21,993.93 × 9,969.75
  4. Step 4: Simplify right side
    15,938.37x = 219,273,983.62
  5. Step 5: Solve for x
    x = 219,273,983.62/15,938.37
  6. Step 6: Final answer
    x = 13,757.62

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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.