Home / 20,126.03-27,774.63-11,173.67

Finding the Fourth Proportional to 20,126.03, 27,774.63 and 11,173.67

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Solution

The fourth proportional to 20,126.03, 27,774.63 and 11,173.67 is: 15,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.03 : 27,774.63 = 11,173.67 : x
  2. Step 2: Convert to fraction form
    20,126.03/27,774.63 = 11,173.67/x
  3. Step 3: Cross multiply
    20,126.03x = 27,774.63 × 11,173.67
  4. Step 4: Simplify right side
    20,126.03x = 310,344,515.27
  5. Step 5: Solve for x
    x = 310,344,515.27/20,126.03
  6. Step 6: Final answer
    x = 15,420.06

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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.