Home / 7,409.96-11,120.40-3,514.36

Finding the Fourth Proportional to 7,409.96, 11,120.40 and 3,514.36

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Solution

The fourth proportional to 7,409.96, 11,120.40 and 3,514.36 is: 5,274.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.96 : 11,120.40 = 3,514.36 : x
  2. Step 2: Convert to fraction form
    7,409.96/11,120.40 = 3,514.36/x
  3. Step 3: Cross multiply
    7,409.96x = 11,120.40 × 3,514.36
  4. Step 4: Simplify right side
    7,409.96x = 39,081,088.94
  5. Step 5: Solve for x
    x = 39,081,088.94/7,409.96
  6. Step 6: Final answer
    x = 5,274.13

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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.