Home / 18,122.24-27,138.24-11,528.96

Finding the Fourth Proportional to 18,122.24, 27,138.24 and 11,528.96

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Solution

The fourth proportional to 18,122.24, 27,138.24 and 11,528.96 is: 17,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.24 : 27,138.24 = 11,528.96 : x
  2. Step 2: Convert to fraction form
    18,122.24/27,138.24 = 11,528.96/x
  3. Step 3: Cross multiply
    18,122.24x = 27,138.24 × 11,528.96
  4. Step 4: Simplify right side
    18,122.24x = 312,875,683.43
  5. Step 5: Solve for x
    x = 312,875,683.43/18,122.24
  6. Step 6: Final answer
    x = 17,264.74

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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.