Home / 18,519.64-25,530.54-13,205.24

Finding the Fourth Proportional to 18,519.64, 25,530.54 and 13,205.24

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Solution

The fourth proportional to 18,519.64, 25,530.54 and 13,205.24 is: 18,204.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.64 : 25,530.54 = 13,205.24 : x
  2. Step 2: Convert to fraction form
    18,519.64/25,530.54 = 13,205.24/x
  3. Step 3: Cross multiply
    18,519.64x = 25,530.54 × 13,205.24
  4. Step 4: Simplify right side
    18,519.64x = 337,136,908.03
  5. Step 5: Solve for x
    x = 337,136,908.03/18,519.64
  6. Step 6: Final answer
    x = 18,204.29

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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.