Home / 8,890.11-12,268.39-4,911.25

Finding the Fourth Proportional to 8,890.11, 12,268.39 and 4,911.25

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Solution

The fourth proportional to 8,890.11, 12,268.39 and 4,911.25 is: 6,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.11 : 12,268.39 = 4,911.25 : x
  2. Step 2: Convert to fraction form
    8,890.11/12,268.39 = 4,911.25/x
  3. Step 3: Cross multiply
    8,890.11x = 12,268.39 × 4,911.25
  4. Step 4: Simplify right side
    8,890.11x = 60,253,130.39
  5. Step 5: Solve for x
    x = 60,253,130.39/8,890.11
  6. Step 6: Final answer
    x = 6,777.55

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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.