Home / 11,682.79-16,121.70-7,207.00

Finding the Fourth Proportional to 11,682.79, 16,121.70 and 7,207.00

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Solution

The fourth proportional to 11,682.79, 16,121.70 and 7,207.00 is: 9,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.79 : 16,121.70 = 7,207.00 : x
  2. Step 2: Convert to fraction form
    11,682.79/16,121.70 = 7,207.00/x
  3. Step 3: Cross multiply
    11,682.79x = 16,121.70 × 7,207.00
  4. Step 4: Simplify right side
    11,682.79x = 116,189,051.60
  5. Step 5: Solve for x
    x = 116,189,051.60/11,682.79
  6. Step 6: Final answer
    x = 9,945.32

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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.