Home / 11,113.02-16,670.43-3,321.72

Finding the Fourth Proportional to 11,113.02, 16,670.43 and 3,321.72

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Solution

The fourth proportional to 11,113.02, 16,670.43 and 3,321.72 is: 4,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.02 : 16,670.43 = 3,321.72 : x
  2. Step 2: Convert to fraction form
    11,113.02/16,670.43 = 3,321.72/x
  3. Step 3: Cross multiply
    11,113.02x = 16,670.43 × 3,321.72
  4. Step 4: Simplify right side
    11,113.02x = 55,374,500.74
  5. Step 5: Solve for x
    x = 55,374,500.74/11,113.02
  6. Step 6: Final answer
    x = 4,982.85

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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.