Home / 18,390.09-27,599.00-13,472.36

Finding the Fourth Proportional to 18,390.09, 27,599.00 and 13,472.36

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Solution

The fourth proportional to 18,390.09, 27,599.00 and 13,472.36 is: 20,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.09 : 27,599.00 = 13,472.36 : x
  2. Step 2: Convert to fraction form
    18,390.09/27,599.00 = 13,472.36/x
  3. Step 3: Cross multiply
    18,390.09x = 27,599.00 × 13,472.36
  4. Step 4: Simplify right side
    18,390.09x = 371,823,458.28
  5. Step 5: Solve for x
    x = 371,823,458.28/18,390.09
  6. Step 6: Final answer
    x = 20,218.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.