Home / 13,718.43-20,559.20-10,003.28

Finding the Fourth Proportional to 13,718.43, 20,559.20 and 10,003.28

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Solution

The fourth proportional to 13,718.43, 20,559.20 and 10,003.28 is: 14,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.43 : 20,559.20 = 10,003.28 : x
  2. Step 2: Convert to fraction form
    13,718.43/20,559.20 = 10,003.28/x
  3. Step 3: Cross multiply
    13,718.43x = 20,559.20 × 10,003.28
  4. Step 4: Simplify right side
    13,718.43x = 205,659,281.36
  5. Step 5: Solve for x
    x = 205,659,281.36/13,718.43
  6. Step 6: Final answer
    x = 14,991.46

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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.