Home / 18,143.51-27,208.35-10,750.05

Finding the Fourth Proportional to 18,143.51, 27,208.35 and 10,750.05

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Solution

The fourth proportional to 18,143.51, 27,208.35 and 10,750.05 is: 16,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.51 : 27,208.35 = 10,750.05 : x
  2. Step 2: Convert to fraction form
    18,143.51/27,208.35 = 10,750.05/x
  3. Step 3: Cross multiply
    18,143.51x = 27,208.35 × 10,750.05
  4. Step 4: Simplify right side
    18,143.51x = 292,491,122.92
  5. Step 5: Solve for x
    x = 292,491,122.92/18,143.51
  6. Step 6: Final answer
    x = 16,120.98

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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.