Home / 11,431.10-17,117.85-7,514.30

Finding the Fourth Proportional to 11,431.10, 17,117.85 and 7,514.30

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Solution

The fourth proportional to 11,431.10, 17,117.85 and 7,514.30 is: 11,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.10 : 17,117.85 = 7,514.30 : x
  2. Step 2: Convert to fraction form
    11,431.10/17,117.85 = 7,514.30/x
  3. Step 3: Cross multiply
    11,431.10x = 17,117.85 × 7,514.30
  4. Step 4: Simplify right side
    11,431.10x = 128,628,660.26
  5. Step 5: Solve for x
    x = 128,628,660.26/11,431.10
  6. Step 6: Final answer
    x = 11,252.52

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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.