Home / 7,468.49-11,203.95-2,790.13

Finding the Fourth Proportional to 7,468.49, 11,203.95 and 2,790.13

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Solution

The fourth proportional to 7,468.49, 11,203.95 and 2,790.13 is: 4,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468.49 : 11,203.95 = 2,790.13 : x
  2. Step 2: Convert to fraction form
    7,468.49/11,203.95 = 2,790.13/x
  3. Step 3: Cross multiply
    7,468.49x = 11,203.95 × 2,790.13
  4. Step 4: Simplify right side
    7,468.49x = 31,260,477.01
  5. Step 5: Solve for x
    x = 31,260,477.01/7,468.49
  6. Step 6: Final answer
    x = 4,185.65

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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.