Home / 7,409.82-11,113.65-2,215.02

Finding the Fourth Proportional to 7,409.82, 11,113.65 and 2,215.02

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Solution

The fourth proportional to 7,409.82, 11,113.65 and 2,215.02 is: 3,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.82 : 11,113.65 = 2,215.02 : x
  2. Step 2: Convert to fraction form
    7,409.82/11,113.65 = 2,215.02/x
  3. Step 3: Cross multiply
    7,409.82x = 11,113.65 × 2,215.02
  4. Step 4: Simplify right side
    7,409.82x = 24,616,957.02
  5. Step 5: Solve for x
    x = 24,616,957.02/7,409.82
  6. Step 6: Final answer
    x = 3,322.21

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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.