Home / 18,143.40-27,189.14-10,336.08

Finding the Fourth Proportional to 18,143.40, 27,189.14 and 10,336.08

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Solution

The fourth proportional to 18,143.40, 27,189.14 and 10,336.08 is: 15,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.40 : 27,189.14 = 10,336.08 : x
  2. Step 2: Convert to fraction form
    18,143.40/27,189.14 = 10,336.08/x
  3. Step 3: Cross multiply
    18,143.40x = 27,189.14 × 10,336.08
  4. Step 4: Simplify right side
    18,143.40x = 281,029,126.17
  5. Step 5: Solve for x
    x = 281,029,126.17/18,143.40
  6. Step 6: Final answer
    x = 15,489.33

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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.