Home / 7,431.21-10,256.09-4,287.47

Finding the Fourth Proportional to 7,431.21, 10,256.09 and 4,287.47

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Solution

The fourth proportional to 7,431.21, 10,256.09 and 4,287.47 is: 5,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.21 : 10,256.09 = 4,287.47 : x
  2. Step 2: Convert to fraction form
    7,431.21/10,256.09 = 4,287.47/x
  3. Step 3: Cross multiply
    7,431.21x = 10,256.09 × 4,287.47
  4. Step 4: Simplify right side
    7,431.21x = 43,972,605.47
  5. Step 5: Solve for x
    x = 43,972,605.47/7,431.21
  6. Step 6: Final answer
    x = 5,917.29

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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.