Home / 8,147.22-11,241.21-4,788.90

Finding the Fourth Proportional to 8,147.22, 11,241.21 and 4,788.90

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Solution

The fourth proportional to 8,147.22, 11,241.21 and 4,788.90 is: 6,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.22 : 11,241.21 = 4,788.90 : x
  2. Step 2: Convert to fraction form
    8,147.22/11,241.21 = 4,788.90/x
  3. Step 3: Cross multiply
    8,147.22x = 11,241.21 × 4,788.90
  4. Step 4: Simplify right side
    8,147.22x = 53,833,030.57
  5. Step 5: Solve for x
    x = 53,833,030.57/8,147.22
  6. Step 6: Final answer
    x = 6,607.53

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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.