Home / 11,220.48-15,479.52-6,744.32

Finding the Fourth Proportional to 11,220.48, 15,479.52 and 6,744.32

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Solution

The fourth proportional to 11,220.48, 15,479.52 and 6,744.32 is: 9,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.48 : 15,479.52 = 6,744.32 : x
  2. Step 2: Convert to fraction form
    11,220.48/15,479.52 = 6,744.32/x
  3. Step 3: Cross multiply
    11,220.48x = 15,479.52 × 6,744.32
  4. Step 4: Simplify right side
    11,220.48x = 104,398,836.33
  5. Step 5: Solve for x
    x = 104,398,836.33/11,220.48
  6. Step 6: Final answer
    x = 9,304.31

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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.