Home / 12,085.03-18,126.80-3,763.87

Finding the Fourth Proportional to 12,085.03, 18,126.80 and 3,763.87

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Solution

The fourth proportional to 12,085.03, 18,126.80 and 3,763.87 is: 5,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.03 : 18,126.80 = 3,763.87 : x
  2. Step 2: Convert to fraction form
    12,085.03/18,126.80 = 3,763.87/x
  3. Step 3: Cross multiply
    12,085.03x = 18,126.80 × 3,763.87
  4. Step 4: Simplify right side
    12,085.03x = 68,226,889.87
  5. Step 5: Solve for x
    x = 68,226,889.87/12,085.03
  6. Step 6: Final answer
    x = 5,645.57

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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.