Home / 18,954.72-26,157.24-10,998.28

Finding the Fourth Proportional to 18,954.72, 26,157.24 and 10,998.28

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Solution

The fourth proportional to 18,954.72, 26,157.24 and 10,998.28 is: 15,177.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.72 : 26,157.24 = 10,998.28 : x
  2. Step 2: Convert to fraction form
    18,954.72/26,157.24 = 10,998.28/x
  3. Step 3: Cross multiply
    18,954.72x = 26,157.24 × 10,998.28
  4. Step 4: Simplify right side
    18,954.72x = 287,684,649.55
  5. Step 5: Solve for x
    x = 287,684,649.55/18,954.72
  6. Step 6: Final answer
    x = 15,177.47

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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.