Home / 13,904.88-20,844.84-10,390.56

Finding the Fourth Proportional to 13,904.88, 20,844.84 and 10,390.56

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Solution

The fourth proportional to 13,904.88, 20,844.84 and 10,390.56 is: 15,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.88 : 20,844.84 = 10,390.56 : x
  2. Step 2: Convert to fraction form
    13,904.88/20,844.84 = 10,390.56/x
  3. Step 3: Cross multiply
    13,904.88x = 20,844.84 × 10,390.56
  4. Step 4: Simplify right side
    13,904.88x = 216,589,560.71
  5. Step 5: Solve for x
    x = 216,589,560.71/13,904.88
  6. Step 6: Final answer
    x = 15,576.51

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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.