Home / 18,012.45-26,963.30-15,355.25

Finding the Fourth Proportional to 18,012.45, 26,963.30 and 15,355.25

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Solution

The fourth proportional to 18,012.45, 26,963.30 and 15,355.25 is: 22,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.45 : 26,963.30 = 15,355.25 : x
  2. Step 2: Convert to fraction form
    18,012.45/26,963.30 = 15,355.25/x
  3. Step 3: Cross multiply
    18,012.45x = 26,963.30 × 15,355.25
  4. Step 4: Simplify right side
    18,012.45x = 414,028,115.90
  5. Step 5: Solve for x
    x = 414,028,115.90/18,012.45
  6. Step 6: Final answer
    x = 22,985.66

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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.