Home / 13,629.57-20,434.78-5,302.56

Finding the Fourth Proportional to 13,629.57, 20,434.78 and 5,302.56

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Solution

The fourth proportional to 13,629.57, 20,434.78 and 5,302.56 is: 7,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.57 : 20,434.78 = 5,302.56 : x
  2. Step 2: Convert to fraction form
    13,629.57/20,434.78 = 5,302.56/x
  3. Step 3: Cross multiply
    13,629.57x = 20,434.78 × 5,302.56
  4. Step 4: Simplify right side
    13,629.57x = 108,356,730.30
  5. Step 5: Solve for x
    x = 108,356,730.30/13,629.57
  6. Step 6: Final answer
    x = 7,950.12

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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.