Home / 11,431.12-17,148.27-3,534.28

Finding the Fourth Proportional to 11,431.12, 17,148.27 and 3,534.28

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Solution

The fourth proportional to 11,431.12, 17,148.27 and 3,534.28 is: 5,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.12 : 17,148.27 = 3,534.28 : x
  2. Step 2: Convert to fraction form
    11,431.12/17,148.27 = 3,534.28/x
  3. Step 3: Cross multiply
    11,431.12x = 17,148.27 × 3,534.28
  4. Step 4: Simplify right side
    11,431.12x = 60,606,744.82
  5. Step 5: Solve for x
    x = 60,606,744.82/11,431.12
  6. Step 6: Final answer
    x = 5,301.91

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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.