Home / 13,213.45-19,810.77-6,189.67

Finding the Fourth Proportional to 13,213.45, 19,810.77 and 6,189.67

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Solution

The fourth proportional to 13,213.45, 19,810.77 and 6,189.67 is: 9,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.45 : 19,810.77 = 6,189.67 : x
  2. Step 2: Convert to fraction form
    13,213.45/19,810.77 = 6,189.67/x
  3. Step 3: Cross multiply
    13,213.45x = 19,810.77 × 6,189.67
  4. Step 4: Simplify right side
    13,213.45x = 122,622,128.75
  5. Step 5: Solve for x
    x = 122,622,128.75/13,213.45
  6. Step 6: Final answer
    x = 9,280.10

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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.