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Finding the Fourth Proportional to 18,388.35, 27,574.97 and 7,293.51

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Solution

The fourth proportional to 18,388.35, 27,574.97 and 7,293.51 is: 10,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.35 : 27,574.97 = 7,293.51 : x
  2. Step 2: Convert to fraction form
    18,388.35/27,574.97 = 7,293.51/x
  3. Step 3: Cross multiply
    18,388.35x = 27,574.97 × 7,293.51
  4. Step 4: Simplify right side
    18,388.35x = 201,118,282.98
  5. Step 5: Solve for x
    x = 201,118,282.98/18,388.35
  6. Step 6: Final answer
    x = 10,937.27

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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.