Home / 12,145.95-16,761.09-6,768.41

Finding the Fourth Proportional to 12,145.95, 16,761.09 and 6,768.41

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Solution

The fourth proportional to 12,145.95, 16,761.09 and 6,768.41 is: 9,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.95 : 16,761.09 = 6,768.41 : x
  2. Step 2: Convert to fraction form
    12,145.95/16,761.09 = 6,768.41/x
  3. Step 3: Cross multiply
    12,145.95x = 16,761.09 × 6,768.41
  4. Step 4: Simplify right side
    12,145.95x = 113,445,965.02
  5. Step 5: Solve for x
    x = 113,445,965.02/12,145.95
  6. Step 6: Final answer
    x = 9,340.23

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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.