Home / 11,927.72-16,459.40-6,622.10

Finding the Fourth Proportional to 11,927.72, 16,459.40 and 6,622.10

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Solution

The fourth proportional to 11,927.72, 16,459.40 and 6,622.10 is: 9,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.72 : 16,459.40 = 6,622.10 : x
  2. Step 2: Convert to fraction form
    11,927.72/16,459.40 = 6,622.10/x
  3. Step 3: Cross multiply
    11,927.72x = 16,459.40 × 6,622.10
  4. Step 4: Simplify right side
    11,927.72x = 108,995,792.74
  5. Step 5: Solve for x
    x = 108,995,792.74/11,927.72
  6. Step 6: Final answer
    x = 9,138.02

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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.