Home / 13,102.22-18,080.46-7,133.87

Finding the Fourth Proportional to 13,102.22, 18,080.46 and 7,133.87

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Solution

The fourth proportional to 13,102.22, 18,080.46 and 7,133.87 is: 9,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.22 : 18,080.46 = 7,133.87 : x
  2. Step 2: Convert to fraction form
    13,102.22/18,080.46 = 7,133.87/x
  3. Step 3: Cross multiply
    13,102.22x = 18,080.46 × 7,133.87
  4. Step 4: Simplify right side
    13,102.22x = 128,983,651.18
  5. Step 5: Solve for x
    x = 128,983,651.18/13,102.22
  6. Step 6: Final answer
    x = 9,844.41

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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.