Home / 10,118.02-15,181.28-4,855.86

Finding the Fourth Proportional to 10,118.02, 15,181.28 and 4,855.86

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Solution

The fourth proportional to 10,118.02, 15,181.28 and 4,855.86 is: 7,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.02 : 15,181.28 = 4,855.86 : x
  2. Step 2: Convert to fraction form
    10,118.02/15,181.28 = 4,855.86/x
  3. Step 3: Cross multiply
    10,118.02x = 15,181.28 × 4,855.86
  4. Step 4: Simplify right side
    10,118.02x = 73,718,170.30
  5. Step 5: Solve for x
    x = 73,718,170.30/10,118.02
  6. Step 6: Final answer
    x = 7,285.83

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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.