Home / 11,720.55-16,181.93-10,459.44

Finding the Fourth Proportional to 11,720.55, 16,181.93 and 10,459.44

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Solution

The fourth proportional to 11,720.55, 16,181.93 and 10,459.44 is: 14,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.55 : 16,181.93 = 10,459.44 : x
  2. Step 2: Convert to fraction form
    11,720.55/16,181.93 = 10,459.44/x
  3. Step 3: Cross multiply
    11,720.55x = 16,181.93 × 10,459.44
  4. Step 4: Simplify right side
    11,720.55x = 169,253,873.62
  5. Step 5: Solve for x
    x = 169,253,873.62/11,720.55
  6. Step 6: Final answer
    x = 14,440.78

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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.