Home / 13,239.93-19,859.87-8,313.03

Finding the Fourth Proportional to 13,239.93, 19,859.87 and 8,313.03

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Solution

The fourth proportional to 13,239.93, 19,859.87 and 8,313.03 is: 12,469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.93 : 19,859.87 = 8,313.03 : x
  2. Step 2: Convert to fraction form
    13,239.93/19,859.87 = 8,313.03/x
  3. Step 3: Cross multiply
    13,239.93x = 19,859.87 × 8,313.03
  4. Step 4: Simplify right side
    13,239.93x = 165,095,642.72
  5. Step 5: Solve for x
    x = 165,095,642.72/13,239.93
  6. Step 6: Final answer
    x = 12,469.53

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Similar ratio
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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.