Home / 14,516.72-21,777.96-6,720.56

Finding the Fourth Proportional to 14,516.72, 21,777.96 and 6,720.56

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Solution

The fourth proportional to 14,516.72, 21,777.96 and 6,720.56 is: 10,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,516.72 : 21,777.96 = 6,720.56 : x
  2. Step 2: Convert to fraction form
    14,516.72/21,777.96 = 6,720.56/x
  3. Step 3: Cross multiply
    14,516.72x = 21,777.96 × 6,720.56
  4. Step 4: Simplify right side
    14,516.72x = 146,360,086.86
  5. Step 5: Solve for x
    x = 146,360,086.86/14,516.72
  6. Step 6: Final answer
    x = 10,082.17

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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.