Home / 8,809.07-13,213.62-2,969.78

Finding the Fourth Proportional to 8,809.07, 13,213.62 and 2,969.78

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Solution

The fourth proportional to 8,809.07, 13,213.62 and 2,969.78 is: 4,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.07 : 13,213.62 = 2,969.78 : x
  2. Step 2: Convert to fraction form
    8,809.07/13,213.62 = 2,969.78/x
  3. Step 3: Cross multiply
    8,809.07x = 13,213.62 × 2,969.78
  4. Step 4: Simplify right side
    8,809.07x = 39,241,478.34
  5. Step 5: Solve for x
    x = 39,241,478.34/8,809.07
  6. Step 6: Final answer
    x = 4,454.67

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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.