Home / 13,193.72-19,790.78-4,309.01

Finding the Fourth Proportional to 13,193.72, 19,790.78 and 4,309.01

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Solution

The fourth proportional to 13,193.72, 19,790.78 and 4,309.01 is: 6,463.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.72 : 19,790.78 = 4,309.01 : x
  2. Step 2: Convert to fraction form
    13,193.72/19,790.78 = 4,309.01/x
  3. Step 3: Cross multiply
    13,193.72x = 19,790.78 × 4,309.01
  4. Step 4: Simplify right side
    13,193.72x = 85,278,548.43
  5. Step 5: Solve for x
    x = 85,278,548.43/13,193.72
  6. Step 6: Final answer
    x = 6,463.57

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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.