Home / 13,570.20-20,309.94-7,725.24

Finding the Fourth Proportional to 13,570.20, 20,309.94 and 7,725.24

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Solution

The fourth proportional to 13,570.20, 20,309.94 and 7,725.24 is: 11,562.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.20 : 20,309.94 = 7,725.24 : x
  2. Step 2: Convert to fraction form
    13,570.20/20,309.94 = 7,725.24/x
  3. Step 3: Cross multiply
    13,570.20x = 20,309.94 × 7,725.24
  4. Step 4: Simplify right side
    13,570.20x = 156,899,160.89
  5. Step 5: Solve for x
    x = 156,899,160.89/13,570.20
  6. Step 6: Final answer
    x = 11,562.04

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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.