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Finding the Fourth Proportional to 8,879.98, 13,316.51 and 3,330.30

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Solution

The fourth proportional to 8,879.98, 13,316.51 and 3,330.30 is: 4,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.98 : 13,316.51 = 3,330.30 : x
  2. Step 2: Convert to fraction form
    8,879.98/13,316.51 = 3,330.30/x
  3. Step 3: Cross multiply
    8,879.98x = 13,316.51 × 3,330.30
  4. Step 4: Simplify right side
    8,879.98x = 44,347,973.25
  5. Step 5: Solve for x
    x = 44,347,973.25/8,879.98
  6. Step 6: Final answer
    x = 4,994.15

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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.