Home / 8,120.02-11,205.61-4,394.02

Finding the Fourth Proportional to 8,120.02, 11,205.61 and 4,394.02

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Solution

The fourth proportional to 8,120.02, 11,205.61 and 4,394.02 is: 6,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.02 : 11,205.61 = 4,394.02 : x
  2. Step 2: Convert to fraction form
    8,120.02/11,205.61 = 4,394.02/x
  3. Step 3: Cross multiply
    8,120.02x = 11,205.61 × 4,394.02
  4. Step 4: Simplify right side
    8,120.02x = 49,237,674.45
  5. Step 5: Solve for x
    x = 49,237,674.45/8,120.02
  6. Step 6: Final answer
    x = 6,063.74

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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.