Home / 18,380.99-25,367.13-10,315.60

Finding the Fourth Proportional to 18,380.99, 25,367.13 and 10,315.60

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Solution

The fourth proportional to 18,380.99, 25,367.13 and 10,315.60 is: 14,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.99 : 25,367.13 = 10,315.60 : x
  2. Step 2: Convert to fraction form
    18,380.99/25,367.13 = 10,315.60/x
  3. Step 3: Cross multiply
    18,380.99x = 25,367.13 × 10,315.60
  4. Step 4: Simplify right side
    18,380.99x = 261,677,166.23
  5. Step 5: Solve for x
    x = 261,677,166.23/18,380.99
  6. Step 6: Final answer
    x = 14,236.29

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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.