Home / 13,776.42-20,664.45-3,388.26

Finding the Fourth Proportional to 13,776.42, 20,664.45 and 3,388.26

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Solution

The fourth proportional to 13,776.42, 20,664.45 and 3,388.26 is: 5,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.42 : 20,664.45 = 3,388.26 : x
  2. Step 2: Convert to fraction form
    13,776.42/20,664.45 = 3,388.26/x
  3. Step 3: Cross multiply
    13,776.42x = 20,664.45 × 3,388.26
  4. Step 4: Simplify right side
    13,776.42x = 70,016,529.36
  5. Step 5: Solve for x
    x = 70,016,529.36/13,776.42
  6. Step 6: Final answer
    x = 5,082.35

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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.