Home / 11,899.80-17,839.64-7,507.60

Finding the Fourth Proportional to 11,899.80, 17,839.64 and 7,507.60

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Solution

The fourth proportional to 11,899.80, 17,839.64 and 7,507.60 is: 11,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.80 : 17,839.64 = 7,507.60 : x
  2. Step 2: Convert to fraction form
    11,899.80/17,839.64 = 7,507.60/x
  3. Step 3: Cross multiply
    11,899.80x = 17,839.64 × 7,507.60
  4. Step 4: Simplify right side
    11,899.80x = 133,932,881.26
  5. Step 5: Solve for x
    x = 133,932,881.26/11,899.80
  6. Step 6: Final answer
    x = 11,255.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.