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Finding the Fourth Proportional to 8,959.37, 13,439.08 and 2,719.43

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Solution

The fourth proportional to 8,959.37, 13,439.08 and 2,719.43 is: 4,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.37 : 13,439.08 = 2,719.43 : x
  2. Step 2: Convert to fraction form
    8,959.37/13,439.08 = 2,719.43/x
  3. Step 3: Cross multiply
    8,959.37x = 13,439.08 × 2,719.43
  4. Step 4: Simplify right side
    8,959.37x = 36,546,637.32
  5. Step 5: Solve for x
    x = 36,546,637.32/8,959.37
  6. Step 6: Final answer
    x = 4,079.15

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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.