Home / 18,983.39-28,477.16-11,635.07

Finding the Fourth Proportional to 18,983.39, 28,477.16 and 11,635.07

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Solution

The fourth proportional to 18,983.39, 28,477.16 and 11,635.07 is: 17,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.39 : 28,477.16 = 11,635.07 : x
  2. Step 2: Convert to fraction form
    18,983.39/28,477.16 = 11,635.07/x
  3. Step 3: Cross multiply
    18,983.39x = 28,477.16 × 11,635.07
  4. Step 4: Simplify right side
    18,983.39x = 331,333,549.44
  5. Step 5: Solve for x
    x = 331,333,549.44/18,983.39
  6. Step 6: Final answer
    x = 17,453.87

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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.