Home / 13,642.64-20,471.81-5,744.53

Finding the Fourth Proportional to 13,642.64, 20,471.81 and 5,744.53

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Solution

The fourth proportional to 13,642.64, 20,471.81 and 5,744.53 is: 8,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.64 : 20,471.81 = 5,744.53 : x
  2. Step 2: Convert to fraction form
    13,642.64/20,471.81 = 5,744.53/x
  3. Step 3: Cross multiply
    13,642.64x = 20,471.81 × 5,744.53
  4. Step 4: Simplify right side
    13,642.64x = 117,600,923.57
  5. Step 5: Solve for x
    x = 117,600,923.57/13,642.64
  6. Step 6: Final answer
    x = 8,620.10

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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.