Home / 11,927.20-16,459.96-6,622.10

Finding the Fourth Proportional to 11,927.20, 16,459.96 and 6,622.10

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Solution

The fourth proportional to 11,927.20, 16,459.96 and 6,622.10 is: 9,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.20 : 16,459.96 = 6,622.10 : x
  2. Step 2: Convert to fraction form
    11,927.20/16,459.96 = 6,622.10/x
  3. Step 3: Cross multiply
    11,927.20x = 16,459.96 × 6,622.10
  4. Step 4: Simplify right side
    11,927.20x = 108,999,501.12
  5. Step 5: Solve for x
    x = 108,999,501.12/11,927.20
  6. Step 6: Final answer
    x = 9,138.73

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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.