Home / 18,629.67-25,709.04-10,131.85

Finding the Fourth Proportional to 18,629.67, 25,709.04 and 10,131.85

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Solution

The fourth proportional to 18,629.67, 25,709.04 and 10,131.85 is: 13,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.67 : 25,709.04 = 10,131.85 : x
  2. Step 2: Convert to fraction form
    18,629.67/25,709.04 = 10,131.85/x
  3. Step 3: Cross multiply
    18,629.67x = 25,709.04 × 10,131.85
  4. Step 4: Simplify right side
    18,629.67x = 260,480,136.92
  5. Step 5: Solve for x
    x = 260,480,136.92/18,629.67
  6. Step 6: Final answer
    x = 13,982.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.