Home / 13,213.48-18,250.56-9,622.69

Finding the Fourth Proportional to 13,213.48, 18,250.56 and 9,622.69

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Solution

The fourth proportional to 13,213.48, 18,250.56 and 9,622.69 is: 13,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.48 : 18,250.56 = 9,622.69 : x
  2. Step 2: Convert to fraction form
    13,213.48/18,250.56 = 9,622.69/x
  3. Step 3: Cross multiply
    13,213.48x = 18,250.56 × 9,622.69
  4. Step 4: Simplify right side
    13,213.48x = 175,619,481.21
  5. Step 5: Solve for x
    x = 175,619,481.21/13,213.48
  6. Step 6: Final answer
    x = 13,290.93

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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.