Home / 14,787.25-20,406.22-8,072.80

Finding the Fourth Proportional to 14,787.25, 20,406.22 and 8,072.80

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Solution

The fourth proportional to 14,787.25, 20,406.22 and 8,072.80 is: 11,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.25 : 20,406.22 = 8,072.80 : x
  2. Step 2: Convert to fraction form
    14,787.25/20,406.22 = 8,072.80/x
  3. Step 3: Cross multiply
    14,787.25x = 20,406.22 × 8,072.80
  4. Step 4: Simplify right side
    14,787.25x = 164,735,332.82
  5. Step 5: Solve for x
    x = 164,735,332.82/14,787.25
  6. Step 6: Final answer
    x = 11,140.36

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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.