Home / 11,345.26-17,020.56-11,157

Finding the Fourth Proportional to 11,345.26, 17,020.56 and 11,157

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Solution

The fourth proportional to 11,345.26, 17,020.56 and 11,157 is: 16,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.26 : 17,020.56 = 11,157 : x
  2. Step 2: Convert to fraction form
    11,345.26/17,020.56 = 11,157/x
  3. Step 3: Cross multiply
    11,345.26x = 17,020.56 × 11,157
  4. Step 4: Simplify right side
    11,345.26x = 189,898,387.92
  5. Step 5: Solve for x
    x = 189,898,387.92/11,345.26
  6. Step 6: Final answer
    x = 16,738.13

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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.