Home / 8,812.36-13,212.24-4,129.75

Finding the Fourth Proportional to 8,812.36, 13,212.24 and 4,129.75

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Solution

The fourth proportional to 8,812.36, 13,212.24 and 4,129.75 is: 6,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.36 : 13,212.24 = 4,129.75 : x
  2. Step 2: Convert to fraction form
    8,812.36/13,212.24 = 4,129.75/x
  3. Step 3: Cross multiply
    8,812.36x = 13,212.24 × 4,129.75
  4. Step 4: Simplify right side
    8,812.36x = 54,563,248.14
  5. Step 5: Solve for x
    x = 54,563,248.14/8,812.36
  6. Step 6: Final answer
    x = 6,191.67

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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.