Home / 18,228.51-25,156.44-12,168.36

Finding the Fourth Proportional to 18,228.51, 25,156.44 and 12,168.36

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Solution

The fourth proportional to 18,228.51, 25,156.44 and 12,168.36 is: 16,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.51 : 25,156.44 = 12,168.36 : x
  2. Step 2: Convert to fraction form
    18,228.51/25,156.44 = 12,168.36/x
  3. Step 3: Cross multiply
    18,228.51x = 25,156.44 × 12,168.36
  4. Step 4: Simplify right side
    18,228.51x = 306,112,618.24
  5. Step 5: Solve for x
    x = 306,112,618.24/18,228.51
  6. Step 6: Final answer
    x = 16,793.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.