Home / 11,278.88-15,564.74-6,243.46

Finding the Fourth Proportional to 11,278.88, 15,564.74 and 6,243.46

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Solution

The fourth proportional to 11,278.88, 15,564.74 and 6,243.46 is: 8,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.88 : 15,564.74 = 6,243.46 : x
  2. Step 2: Convert to fraction form
    11,278.88/15,564.74 = 6,243.46/x
  3. Step 3: Cross multiply
    11,278.88x = 15,564.74 × 6,243.46
  4. Step 4: Simplify right side
    11,278.88x = 97,177,831.60
  5. Step 5: Solve for x
    x = 97,177,831.60/11,278.88
  6. Step 6: Final answer
    x = 8,615.91

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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.