Home / 13,744.76-20,572.05-10,439.69

Finding the Fourth Proportional to 13,744.76, 20,572.05 and 10,439.69

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Solution

The fourth proportional to 13,744.76, 20,572.05 and 10,439.69 is: 15,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.76 : 20,572.05 = 10,439.69 : x
  2. Step 2: Convert to fraction form
    13,744.76/20,572.05 = 10,439.69/x
  3. Step 3: Cross multiply
    13,744.76x = 20,572.05 × 10,439.69
  4. Step 4: Simplify right side
    13,744.76x = 214,765,824.66
  5. Step 5: Solve for x
    x = 214,765,824.66/13,744.76
  6. Step 6: Final answer
    x = 15,625.29

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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.