Home / 7,409.68-11,114.48-2,215.36

Finding the Fourth Proportional to 7,409.68, 11,114.48 and 2,215.36

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Solution

The fourth proportional to 7,409.68, 11,114.48 and 2,215.36 is: 3,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.68 : 11,114.48 = 2,215.36 : x
  2. Step 2: Convert to fraction form
    7,409.68/11,114.48 = 2,215.36/x
  3. Step 3: Cross multiply
    7,409.68x = 11,114.48 × 2,215.36
  4. Step 4: Simplify right side
    7,409.68x = 24,622,574.41
  5. Step 5: Solve for x
    x = 24,622,574.41/7,409.68
  6. Step 6: Final answer
    x = 3,323.03

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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.