Home / 18,772.97-25,870.39-14,289.62

Finding the Fourth Proportional to 18,772.97, 25,870.39 and 14,289.62

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Solution

The fourth proportional to 18,772.97, 25,870.39 and 14,289.62 is: 19,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.97 : 25,870.39 = 14,289.62 : x
  2. Step 2: Convert to fraction form
    18,772.97/25,870.39 = 14,289.62/x
  3. Step 3: Cross multiply
    18,772.97x = 25,870.39 × 14,289.62
  4. Step 4: Simplify right side
    18,772.97x = 369,677,877.28
  5. Step 5: Solve for x
    x = 369,677,877.28/18,772.97
  6. Step 6: Final answer
    x = 19,692.03

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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.