Home / 8,120.49-11,205.81-4,535.22

Finding the Fourth Proportional to 8,120.49, 11,205.81 and 4,535.22

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Solution

The fourth proportional to 8,120.49, 11,205.81 and 4,535.22 is: 6,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.49 : 11,205.81 = 4,535.22 : x
  2. Step 2: Convert to fraction form
    8,120.49/11,205.81 = 4,535.22/x
  3. Step 3: Cross multiply
    8,120.49x = 11,205.81 × 4,535.22
  4. Step 4: Simplify right side
    8,120.49x = 50,820,813.63
  5. Step 5: Solve for x
    x = 50,820,813.63/8,120.49
  6. Step 6: Final answer
    x = 6,258.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.