Home / 11,430.82-15,739.46-10,006.54

Finding the Fourth Proportional to 11,430.82, 15,739.46 and 10,006.54

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Solution

The fourth proportional to 11,430.82, 15,739.46 and 10,006.54 is: 13,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.82 : 15,739.46 = 10,006.54 : x
  2. Step 2: Convert to fraction form
    11,430.82/15,739.46 = 10,006.54/x
  3. Step 3: Cross multiply
    11,430.82x = 15,739.46 × 10,006.54
  4. Step 4: Simplify right side
    11,430.82x = 157,497,536.07
  5. Step 5: Solve for x
    x = 157,497,536.07/11,430.82
  6. Step 6: Final answer
    x = 13,778.32

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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.