Home / 12,155.11-16,773.95-6,777.48

Finding the Fourth Proportional to 12,155.11, 16,773.95 and 6,777.48

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Solution

The fourth proportional to 12,155.11, 16,773.95 and 6,777.48 is: 9,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.11 : 16,773.95 = 6,777.48 : x
  2. Step 2: Convert to fraction form
    12,155.11/16,773.95 = 6,777.48/x
  3. Step 3: Cross multiply
    12,155.11x = 16,773.95 × 6,777.48
  4. Step 4: Simplify right side
    12,155.11x = 113,685,169.52
  5. Step 5: Solve for x
    x = 113,685,169.52/12,155.11
  6. Step 6: Final answer
    x = 9,352.87

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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.