Home / 7,431.36-10,256.20-4,287.56

Finding the Fourth Proportional to 7,431.36, 10,256.20 and 4,287.56

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Solution

The fourth proportional to 7,431.36, 10,256.20 and 4,287.56 is: 5,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.36 : 10,256.20 = 4,287.56 : x
  2. Step 2: Convert to fraction form
    7,431.36/10,256.20 = 4,287.56/x
  3. Step 3: Cross multiply
    7,431.36x = 10,256.20 × 4,287.56
  4. Step 4: Simplify right side
    7,431.36x = 43,974,072.87
  5. Step 5: Solve for x
    x = 43,974,072.87/7,431.36
  6. Step 6: Final answer
    x = 5,917.37

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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.