Home / 8,119.82-11,205.88-4,581.74

Finding the Fourth Proportional to 8,119.82, 11,205.88 and 4,581.74

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Solution

The fourth proportional to 8,119.82, 11,205.88 and 4,581.74 is: 6,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.82 : 11,205.88 = 4,581.74 : x
  2. Step 2: Convert to fraction form
    8,119.82/11,205.88 = 4,581.74/x
  3. Step 3: Cross multiply
    8,119.82x = 11,205.88 × 4,581.74
  4. Step 4: Simplify right side
    8,119.82x = 51,342,428.63
  5. Step 5: Solve for x
    x = 51,342,428.63/8,119.82
  6. Step 6: Final answer
    x = 6,323.10

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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.