Home / 11,418.33-17,130.96-5,419.02

Finding the Fourth Proportional to 11,418.33, 17,130.96 and 5,419.02

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Solution

The fourth proportional to 11,418.33, 17,130.96 and 5,419.02 is: 8,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.33 : 17,130.96 = 5,419.02 : x
  2. Step 2: Convert to fraction form
    11,418.33/17,130.96 = 5,419.02/x
  3. Step 3: Cross multiply
    11,418.33x = 17,130.96 × 5,419.02
  4. Step 4: Simplify right side
    11,418.33x = 92,833,014.86
  5. Step 5: Solve for x
    x = 92,833,014.86/11,418.33
  6. Step 6: Final answer
    x = 8,130.17

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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.