Home / 13,744.47-20,604.42-6,720.51

Finding the Fourth Proportional to 13,744.47, 20,604.42 and 6,720.51

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Solution

The fourth proportional to 13,744.47, 20,604.42 and 6,720.51 is: 10,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.47 : 20,604.42 = 6,720.51 : x
  2. Step 2: Convert to fraction form
    13,744.47/20,604.42 = 6,720.51/x
  3. Step 3: Cross multiply
    13,744.47x = 20,604.42 × 6,720.51
  4. Step 4: Simplify right side
    13,744.47x = 138,472,210.65
  5. Step 5: Solve for x
    x = 138,472,210.65/13,744.47
  6. Step 6: Final answer
    x = 10,074.76

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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.