Home / 8,890.86-12,268.75-4,911.94

Finding the Fourth Proportional to 8,890.86, 12,268.75 and 4,911.94

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Solution

The fourth proportional to 8,890.86, 12,268.75 and 4,911.94 is: 6,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.86 : 12,268.75 = 4,911.94 : x
  2. Step 2: Convert to fraction form
    8,890.86/12,268.75 = 4,911.94/x
  3. Step 3: Cross multiply
    8,890.86x = 12,268.75 × 4,911.94
  4. Step 4: Simplify right side
    8,890.86x = 60,263,363.88
  5. Step 5: Solve for x
    x = 60,263,363.88/8,890.86
  6. Step 6: Final answer
    x = 6,778.13

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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.