Home / 18,205.90-27,289.41-12,995.98

Finding the Fourth Proportional to 18,205.90, 27,289.41 and 12,995.98

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Solution

The fourth proportional to 18,205.90, 27,289.41 and 12,995.98 is: 19,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.90 : 27,289.41 = 12,995.98 : x
  2. Step 2: Convert to fraction form
    18,205.90/27,289.41 = 12,995.98/x
  3. Step 3: Cross multiply
    18,205.90x = 27,289.41 × 12,995.98
  4. Step 4: Simplify right side
    18,205.90x = 354,652,509.61
  5. Step 5: Solve for x
    x = 354,652,509.61/18,205.90
  6. Step 6: Final answer
    x = 19,480.09

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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.