Home / 12,767.22-19,111.23-6,909.30

Finding the Fourth Proportional to 12,767.22, 19,111.23 and 6,909.30

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Solution

The fourth proportional to 12,767.22, 19,111.23 and 6,909.30 is: 10,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.22 : 19,111.23 = 6,909.30 : x
  2. Step 2: Convert to fraction form
    12,767.22/19,111.23 = 6,909.30/x
  3. Step 3: Cross multiply
    12,767.22x = 19,111.23 × 6,909.30
  4. Step 4: Simplify right side
    12,767.22x = 132,045,221.44
  5. Step 5: Solve for x
    x = 132,045,221.44/12,767.22
  6. Step 6: Final answer
    x = 10,342.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.