Home / 18,101.40-24,979.58-10,143.60

Finding the Fourth Proportional to 18,101.40, 24,979.58 and 10,143.60

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Solution

The fourth proportional to 18,101.40, 24,979.58 and 10,143.60 is: 13,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.40 : 24,979.58 = 10,143.60 : x
  2. Step 2: Convert to fraction form
    18,101.40/24,979.58 = 10,143.60/x
  3. Step 3: Cross multiply
    18,101.40x = 24,979.58 × 10,143.60
  4. Step 4: Simplify right side
    18,101.40x = 253,382,867.69
  5. Step 5: Solve for x
    x = 253,382,867.69/18,101.40
  6. Step 6: Final answer
    x = 13,997.97

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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.