Home / 13,290.20-19,937.73-5,499.62

Finding the Fourth Proportional to 13,290.20, 19,937.73 and 5,499.62

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Solution

The fourth proportional to 13,290.20, 19,937.73 and 5,499.62 is: 8,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.20 : 19,937.73 = 5,499.62 : x
  2. Step 2: Convert to fraction form
    13,290.20/19,937.73 = 5,499.62/x
  3. Step 3: Cross multiply
    13,290.20x = 19,937.73 × 5,499.62
  4. Step 4: Simplify right side
    13,290.20x = 109,649,838.97
  5. Step 5: Solve for x
    x = 109,649,838.97/13,290.20
  6. Step 6: Final answer
    x = 8,250.43

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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.