Home / 12,377.75-17,077.28-6,999.66

Finding the Fourth Proportional to 12,377.75, 17,077.28 and 6,999.66

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Solution

The fourth proportional to 12,377.75, 17,077.28 and 6,999.66 is: 9,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.75 : 17,077.28 = 6,999.66 : x
  2. Step 2: Convert to fraction form
    12,377.75/17,077.28 = 6,999.66/x
  3. Step 3: Cross multiply
    12,377.75x = 17,077.28 × 6,999.66
  4. Step 4: Simplify right side
    12,377.75x = 119,535,118.73
  5. Step 5: Solve for x
    x = 119,535,118.73/12,377.75
  6. Step 6: Final answer
    x = 9,657.26

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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.