Home / 11,622.78-16,021.26-9,507.06

Finding the Fourth Proportional to 11,622.78, 16,021.26 and 9,507.06

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Solution

The fourth proportional to 11,622.78, 16,021.26 and 9,507.06 is: 13,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.78 : 16,021.26 = 9,507.06 : x
  2. Step 2: Convert to fraction form
    11,622.78/16,021.26 = 9,507.06/x
  3. Step 3: Cross multiply
    11,622.78x = 16,021.26 × 9,507.06
  4. Step 4: Simplify right side
    11,622.78x = 152,315,080.10
  5. Step 5: Solve for x
    x = 152,315,080.10/11,622.78
  6. Step 6: Final answer
    x = 13,104.88

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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.