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Finding the Fourth Proportional to 9,181.99, 12,671.58 and 5,203.18

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Solution

The fourth proportional to 9,181.99, 12,671.58 and 5,203.18 is: 7,180.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.99 : 12,671.58 = 5,203.18 : x
  2. Step 2: Convert to fraction form
    9,181.99/12,671.58 = 5,203.18/x
  3. Step 3: Cross multiply
    9,181.99x = 12,671.58 × 5,203.18
  4. Step 4: Simplify right side
    9,181.99x = 65,932,511.62
  5. Step 5: Solve for x
    x = 65,932,511.62/9,181.99
  6. Step 6: Final answer
    x = 7,180.63

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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.