Home / 13,938.44-20,882.75-7,349.90

Finding the Fourth Proportional to 13,938.44, 20,882.75 and 7,349.90

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Solution

The fourth proportional to 13,938.44, 20,882.75 and 7,349.90 is: 11,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.44 : 20,882.75 = 7,349.90 : x
  2. Step 2: Convert to fraction form
    13,938.44/20,882.75 = 7,349.90/x
  3. Step 3: Cross multiply
    13,938.44x = 20,882.75 × 7,349.90
  4. Step 4: Simplify right side
    13,938.44x = 153,485,983.06
  5. Step 5: Solve for x
    x = 153,485,983.06/13,938.44
  6. Step 6: Final answer
    x = 11,011.71

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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.