Home / 7,409.20-11,117.46-3,516.36

Finding the Fourth Proportional to 7,409.20, 11,117.46 and 3,516.36

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Solution

The fourth proportional to 7,409.20, 11,117.46 and 3,516.36 is: 5,276.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.20 : 11,117.46 = 3,516.36 : x
  2. Step 2: Convert to fraction form
    7,409.20/11,117.46 = 3,516.36/x
  3. Step 3: Cross multiply
    7,409.20x = 11,117.46 × 3,516.36
  4. Step 4: Simplify right side
    7,409.20x = 39,092,991.65
  5. Step 5: Solve for x
    x = 39,092,991.65/7,409.20
  6. Step 6: Final answer
    x = 5,276.28

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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.