Home / 14,507.05-21,760.85-11,620.21

Finding the Fourth Proportional to 14,507.05, 21,760.85 and 11,620.21

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Solution

The fourth proportional to 14,507.05, 21,760.85 and 11,620.21 is: 17,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.05 : 21,760.85 = 11,620.21 : x
  2. Step 2: Convert to fraction form
    14,507.05/21,760.85 = 11,620.21/x
  3. Step 3: Cross multiply
    14,507.05x = 21,760.85 × 11,620.21
  4. Step 4: Simplify right side
    14,507.05x = 252,865,646.78
  5. Step 5: Solve for x
    x = 252,865,646.78/14,507.05
  6. Step 6: Final answer
    x = 17,430.54

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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.