Home / 8,021.75-11,068.70-7,376.59

Finding the Fourth Proportional to 8,021.75, 11,068.70 and 7,376.59

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Solution

The fourth proportional to 8,021.75, 11,068.70 and 7,376.59 is: 10,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.75 : 11,068.70 = 7,376.59 : x
  2. Step 2: Convert to fraction form
    8,021.75/11,068.70 = 7,376.59/x
  3. Step 3: Cross multiply
    8,021.75x = 11,068.70 × 7,376.59
  4. Step 4: Simplify right side
    8,021.75x = 81,649,261.73
  5. Step 5: Solve for x
    x = 81,649,261.73/8,021.75
  6. Step 6: Final answer
    x = 10,178.48

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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.