Home / 13,764.28-20,646.36-3,376

Finding the Fourth Proportional to 13,764.28, 20,646.36 and 3,376

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Solution

The fourth proportional to 13,764.28, 20,646.36 and 3,376 is: 5,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.28 : 20,646.36 = 3,376 : x
  2. Step 2: Convert to fraction form
    13,764.28/20,646.36 = 3,376/x
  3. Step 3: Cross multiply
    13,764.28x = 20,646.36 × 3,376
  4. Step 4: Simplify right side
    13,764.28x = 69,702,111.36
  5. Step 5: Solve for x
    x = 69,702,111.36/13,764.28
  6. Step 6: Final answer
    x = 5,063.99

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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.