Home / 13,199.62-18,208.56-8,162.23

Finding the Fourth Proportional to 13,199.62, 18,208.56 and 8,162.23

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Solution

The fourth proportional to 13,199.62, 18,208.56 and 8,162.23 is: 11,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.62 : 18,208.56 = 8,162.23 : x
  2. Step 2: Convert to fraction form
    13,199.62/18,208.56 = 8,162.23/x
  3. Step 3: Cross multiply
    13,199.62x = 18,208.56 × 8,162.23
  4. Step 4: Simplify right side
    13,199.62x = 148,622,454.69
  5. Step 5: Solve for x
    x = 148,622,454.69/13,199.62
  6. Step 6: Final answer
    x = 11,259.60

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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.