Home / 8,163.90-11,261.70-4,805.10

Finding the Fourth Proportional to 8,163.90, 11,261.70 and 4,805.10

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Solution

The fourth proportional to 8,163.90, 11,261.70 and 4,805.10 is: 6,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.90 : 11,261.70 = 4,805.10 : x
  2. Step 2: Convert to fraction form
    8,163.90/11,261.70 = 4,805.10/x
  3. Step 3: Cross multiply
    8,163.90x = 11,261.70 × 4,805.10
  4. Step 4: Simplify right side
    8,163.90x = 54,113,594.67
  5. Step 5: Solve for x
    x = 54,113,594.67/8,163.90
  6. Step 6: Final answer
    x = 6,628.40

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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.