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Finding the Fourth Proportional to 8,879.82, 13,319.74 and 3,036.48

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Solution

The fourth proportional to 8,879.82, 13,319.74 and 3,036.48 is: 4,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.82 : 13,319.74 = 3,036.48 : x
  2. Step 2: Convert to fraction form
    8,879.82/13,319.74 = 3,036.48/x
  3. Step 3: Cross multiply
    8,879.82x = 13,319.74 × 3,036.48
  4. Step 4: Simplify right side
    8,879.82x = 40,445,124.12
  5. Step 5: Solve for x
    x = 40,445,124.12/8,879.82
  6. Step 6: Final answer
    x = 4,554.72

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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.