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Finding the Fourth Proportional to 6,879.89, 9,493.71 and 4,047.37

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Solution

The fourth proportional to 6,879.89, 9,493.71 and 4,047.37 is: 5,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.89 : 9,493.71 = 4,047.37 : x
  2. Step 2: Convert to fraction form
    6,879.89/9,493.71 = 4,047.37/x
  3. Step 3: Cross multiply
    6,879.89x = 9,493.71 × 4,047.37
  4. Step 4: Simplify right side
    6,879.89x = 38,424,518.13
  5. Step 5: Solve for x
    x = 38,424,518.13/6,879.89
  6. Step 6: Final answer
    x = 5,585.05

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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.