Home / 10,100.36-15,150.56-3,080.40

Finding the Fourth Proportional to 10,100.36, 15,150.56 and 3,080.40

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Solution

The fourth proportional to 10,100.36, 15,150.56 and 3,080.40 is: 4,620.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.36 : 15,150.56 = 3,080.40 : x
  2. Step 2: Convert to fraction form
    10,100.36/15,150.56 = 3,080.40/x
  3. Step 3: Cross multiply
    10,100.36x = 15,150.56 × 3,080.40
  4. Step 4: Simplify right side
    10,100.36x = 46,669,785.02
  5. Step 5: Solve for x
    x = 46,669,785.02/10,100.36
  6. Step 6: Final answer
    x = 4,620.61

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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.