Home / 11,927.72-16,459.56-6,622.40

Finding the Fourth Proportional to 11,927.72, 16,459.56 and 6,622.40

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Solution

The fourth proportional to 11,927.72, 16,459.56 and 6,622.40 is: 9,138.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.72 : 16,459.56 = 6,622.40 : x
  2. Step 2: Convert to fraction form
    11,927.72/16,459.56 = 6,622.40/x
  3. Step 3: Cross multiply
    11,927.72x = 16,459.56 × 6,622.40
  4. Step 4: Simplify right side
    11,927.72x = 109,001,790.14
  5. Step 5: Solve for x
    x = 109,001,790.14/11,927.72
  6. Step 6: Final answer
    x = 9,138.53

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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.