Home / 11,111.44-15,336.40-6,398.48

Finding the Fourth Proportional to 11,111.44, 15,336.40 and 6,398.48

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Solution

The fourth proportional to 11,111.44, 15,336.40 and 6,398.48 is: 8,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.44 : 15,336.40 = 6,398.48 : x
  2. Step 2: Convert to fraction form
    11,111.44/15,336.40 = 6,398.48/x
  3. Step 3: Cross multiply
    11,111.44x = 15,336.40 × 6,398.48
  4. Step 4: Simplify right side
    11,111.44x = 98,129,648.67
  5. Step 5: Solve for x
    x = 98,129,648.67/11,111.44
  6. Step 6: Final answer
    x = 8,831.41

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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.