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Finding the Fourth Proportional to 7,927.75, 11,888.07 and 4,229.11

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Solution

The fourth proportional to 7,927.75, 11,888.07 and 4,229.11 is: 6,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.75 : 11,888.07 = 4,229.11 : x
  2. Step 2: Convert to fraction form
    7,927.75/11,888.07 = 4,229.11/x
  3. Step 3: Cross multiply
    7,927.75x = 11,888.07 × 4,229.11
  4. Step 4: Simplify right side
    7,927.75x = 50,275,955.72
  5. Step 5: Solve for x
    x = 50,275,955.72/7,927.75
  6. Step 6: Final answer
    x = 6,341.77

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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.