Home / 12,100.80-16,700.28-6,796.08

Finding the Fourth Proportional to 12,100.80, 16,700.28 and 6,796.08

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Solution

The fourth proportional to 12,100.80, 16,700.28 and 6,796.08 is: 9,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.80 : 16,700.28 = 6,796.08 : x
  2. Step 2: Convert to fraction form
    12,100.80/16,700.28 = 6,796.08/x
  3. Step 3: Cross multiply
    12,100.80x = 16,700.28 × 6,796.08
  4. Step 4: Simplify right side
    12,100.80x = 113,496,438.90
  5. Step 5: Solve for x
    x = 113,496,438.90/12,100.80
  6. Step 6: Final answer
    x = 9,379.25

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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.