Home / 7,418.33-11,129.40-5,231.33

Finding the Fourth Proportional to 7,418.33, 11,129.40 and 5,231.33

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Solution

The fourth proportional to 7,418.33, 11,129.40 and 5,231.33 is: 7,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.33 : 11,129.40 = 5,231.33 : x
  2. Step 2: Convert to fraction form
    7,418.33/11,129.40 = 5,231.33/x
  3. Step 3: Cross multiply
    7,418.33x = 11,129.40 × 5,231.33
  4. Step 4: Simplify right side
    7,418.33x = 58,221,612.79
  5. Step 5: Solve for x
    x = 58,221,612.79/7,418.33
  6. Step 6: Final answer
    x = 7,848.34

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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.