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Finding the Fourth Proportional to 8,889.17, 13,334.21 and 3,959.16

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Solution

The fourth proportional to 8,889.17, 13,334.21 and 3,959.16 is: 5,938.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.17 : 13,334.21 = 3,959.16 : x
  2. Step 2: Convert to fraction form
    8,889.17/13,334.21 = 3,959.16/x
  3. Step 3: Cross multiply
    8,889.17x = 13,334.21 × 3,959.16
  4. Step 4: Simplify right side
    8,889.17x = 52,792,270.86
  5. Step 5: Solve for x
    x = 52,792,270.86/8,889.17
  6. Step 6: Final answer
    x = 5,938.94

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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.