Home / 10,131.36-15,195.78-4,287.24

Finding the Fourth Proportional to 10,131.36, 15,195.78 and 4,287.24

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Solution

The fourth proportional to 10,131.36, 15,195.78 and 4,287.24 is: 6,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.36 : 15,195.78 = 4,287.24 : x
  2. Step 2: Convert to fraction form
    10,131.36/15,195.78 = 4,287.24/x
  3. Step 3: Cross multiply
    10,131.36x = 15,195.78 × 4,287.24
  4. Step 4: Simplify right side
    10,131.36x = 65,147,955.85
  5. Step 5: Solve for x
    x = 65,147,955.85/10,131.36
  6. Step 6: Final answer
    x = 6,430.33

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1.5x scale

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.