Home / 15,080.03-20,796.81-9,415.29

Finding the Fourth Proportional to 15,080.03, 20,796.81 and 9,415.29

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Solution

The fourth proportional to 15,080.03, 20,796.81 and 9,415.29 is: 12,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.03 : 20,796.81 = 9,415.29 : x
  2. Step 2: Convert to fraction form
    15,080.03/20,796.81 = 9,415.29/x
  3. Step 3: Cross multiply
    15,080.03x = 20,796.81 × 9,415.29
  4. Step 4: Simplify right side
    15,080.03x = 195,807,997.22
  5. Step 5: Solve for x
    x = 195,807,997.22/15,080.03
  6. Step 6: Final answer
    x = 12,984.59

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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.