Home / 17,939.12-24,790.13-13,455.09

Finding the Fourth Proportional to 17,939.12, 24,790.13 and 13,455.09

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Solution

The fourth proportional to 17,939.12, 24,790.13 and 13,455.09 is: 18,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.12 : 24,790.13 = 13,455.09 : x
  2. Step 2: Convert to fraction form
    17,939.12/24,790.13 = 13,455.09/x
  3. Step 3: Cross multiply
    17,939.12x = 24,790.13 × 13,455.09
  4. Step 4: Simplify right side
    17,939.12x = 333,553,362.99
  5. Step 5: Solve for x
    x = 333,553,362.99/17,939.12
  6. Step 6: Final answer
    x = 18,593.64

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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.