Home / 18,143.19-27,206.28-6,294.51

Finding the Fourth Proportional to 18,143.19, 27,206.28 and 6,294.51

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Solution

The fourth proportional to 18,143.19, 27,206.28 and 6,294.51 is: 9,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.19 : 27,206.28 = 6,294.51 : x
  2. Step 2: Convert to fraction form
    18,143.19/27,206.28 = 6,294.51/x
  3. Step 3: Cross multiply
    18,143.19x = 27,206.28 × 6,294.51
  4. Step 4: Simplify right side
    18,143.19x = 171,250,201.52
  5. Step 5: Solve for x
    x = 171,250,201.52/18,143.19
  6. Step 6: Final answer
    x = 9,438.81

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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.