Home / 7,813.73-11,712.40-2,880.23

Finding the Fourth Proportional to 7,813.73, 11,712.40 and 2,880.23

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Solution

The fourth proportional to 7,813.73, 11,712.40 and 2,880.23 is: 4,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.73 : 11,712.40 = 2,880.23 : x
  2. Step 2: Convert to fraction form
    7,813.73/11,712.40 = 2,880.23/x
  3. Step 3: Cross multiply
    7,813.73x = 11,712.40 × 2,880.23
  4. Step 4: Simplify right side
    7,813.73x = 33,734,340.09
  5. Step 5: Solve for x
    x = 33,734,340.09/7,813.73
  6. Step 6: Final answer
    x = 4,317.31

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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.