Home / 18,939.24-26,137.02-10,983.96

Finding the Fourth Proportional to 18,939.24, 26,137.02 and 10,983.96

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Solution

The fourth proportional to 18,939.24, 26,137.02 and 10,983.96 is: 15,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.24 : 26,137.02 = 10,983.96 : x
  2. Step 2: Convert to fraction form
    18,939.24/26,137.02 = 10,983.96/x
  3. Step 3: Cross multiply
    18,939.24x = 26,137.02 × 10,983.96
  4. Step 4: Simplify right side
    18,939.24x = 287,087,982.20
  5. Step 5: Solve for x
    x = 287,087,982.20/18,939.24
  6. Step 6: Final answer
    x = 15,158.37

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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.