Home / 13,480.10-20,202.24-7,153.66

Finding the Fourth Proportional to 13,480.10, 20,202.24 and 7,153.66

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Solution

The fourth proportional to 13,480.10, 20,202.24 and 7,153.66 is: 10,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.10 : 20,202.24 = 7,153.66 : x
  2. Step 2: Convert to fraction form
    13,480.10/20,202.24 = 7,153.66/x
  3. Step 3: Cross multiply
    13,480.10x = 20,202.24 × 7,153.66
  4. Step 4: Simplify right side
    13,480.10x = 144,519,956.20
  5. Step 5: Solve for x
    x = 144,519,956.20/13,480.10
  6. Step 6: Final answer
    x = 10,720.99

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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.