Home / 18,520.25-25,558.13-10,136.93

Finding the Fourth Proportional to 18,520.25, 25,558.13 and 10,136.93

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Solution

The fourth proportional to 18,520.25, 25,558.13 and 10,136.93 is: 13,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.25 : 25,558.13 = 10,136.93 : x
  2. Step 2: Convert to fraction form
    18,520.25/25,558.13 = 10,136.93/x
  3. Step 3: Cross multiply
    18,520.25x = 25,558.13 × 10,136.93
  4. Step 4: Simplify right side
    18,520.25x = 259,080,924.06
  5. Step 5: Solve for x
    x = 259,080,924.06/18,520.25
  6. Step 6: Final answer
    x = 13,989.06

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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.