Home / 18,130.68-27,196.65-12,889.17

Finding the Fourth Proportional to 18,130.68, 27,196.65 and 12,889.17

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Solution

The fourth proportional to 18,130.68, 27,196.65 and 12,889.17 is: 19,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.68 : 27,196.65 = 12,889.17 : x
  2. Step 2: Convert to fraction form
    18,130.68/27,196.65 = 12,889.17/x
  3. Step 3: Cross multiply
    18,130.68x = 27,196.65 × 12,889.17
  4. Step 4: Simplify right side
    18,130.68x = 350,542,245.28
  5. Step 5: Solve for x
    x = 350,542,245.28/18,130.68
  6. Step 6: Final answer
    x = 19,334.20

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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.