Home / 18,257.81-27,384.28-7,161.51

Finding the Fourth Proportional to 18,257.81, 27,384.28 and 7,161.51

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Solution

The fourth proportional to 18,257.81, 27,384.28 and 7,161.51 is: 10,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.81 : 27,384.28 = 7,161.51 : x
  2. Step 2: Convert to fraction form
    18,257.81/27,384.28 = 7,161.51/x
  3. Step 3: Cross multiply
    18,257.81x = 27,384.28 × 7,161.51
  4. Step 4: Simplify right side
    18,257.81x = 196,112,879.85
  5. Step 5: Solve for x
    x = 196,112,879.85/18,257.81
  6. Step 6: Final answer
    x = 10,741.32

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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.