Home / 13,787.76-19,033.56-8,822.64

Finding the Fourth Proportional to 13,787.76, 19,033.56 and 8,822.64

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Solution

The fourth proportional to 13,787.76, 19,033.56 and 8,822.64 is: 12,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.76 : 19,033.56 = 8,822.64 : x
  2. Step 2: Convert to fraction form
    13,787.76/19,033.56 = 8,822.64/x
  3. Step 3: Cross multiply
    13,787.76x = 19,033.56 × 8,822.64
  4. Step 4: Simplify right side
    13,787.76x = 167,926,247.80
  5. Step 5: Solve for x
    x = 167,926,247.80/13,787.76
  6. Step 6: Final answer
    x = 12,179.37

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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.