Home / 10,889.28-16,335.84-3,871.44

Finding the Fourth Proportional to 10,889.28, 16,335.84 and 3,871.44

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Solution

The fourth proportional to 10,889.28, 16,335.84 and 3,871.44 is: 5,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.28 : 16,335.84 = 3,871.44 : x
  2. Step 2: Convert to fraction form
    10,889.28/16,335.84 = 3,871.44/x
  3. Step 3: Cross multiply
    10,889.28x = 16,335.84 × 3,871.44
  4. Step 4: Simplify right side
    10,889.28x = 63,243,224.41
  5. Step 5: Solve for x
    x = 63,243,224.41/10,889.28
  6. Step 6: Final answer
    x = 5,807.84

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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.