Home / 15,013.52-20,719.26-9,969.06

Finding the Fourth Proportional to 15,013.52, 20,719.26 and 9,969.06

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Solution

The fourth proportional to 15,013.52, 20,719.26 and 9,969.06 is: 13,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.52 : 20,719.26 = 9,969.06 : x
  2. Step 2: Convert to fraction form
    15,013.52/20,719.26 = 9,969.06/x
  3. Step 3: Cross multiply
    15,013.52x = 20,719.26 × 9,969.06
  4. Step 4: Simplify right side
    15,013.52x = 206,551,546.10
  5. Step 5: Solve for x
    x = 206,551,546.10/15,013.52
  6. Step 6: Final answer
    x = 13,757.70

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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.