Home / 13,763.28-20,637.63-5,442.96

Finding the Fourth Proportional to 13,763.28, 20,637.63 and 5,442.96

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Solution

The fourth proportional to 13,763.28, 20,637.63 and 5,442.96 is: 8,161.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.28 : 20,637.63 = 5,442.96 : x
  2. Step 2: Convert to fraction form
    13,763.28/20,637.63 = 5,442.96/x
  3. Step 3: Cross multiply
    13,763.28x = 20,637.63 × 5,442.96
  4. Step 4: Simplify right side
    13,763.28x = 112,329,794.58
  5. Step 5: Solve for x
    x = 112,329,794.58/13,763.28
  6. Step 6: Final answer
    x = 8,161.56

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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.