Home / 13,626.26-18,804.30-7,659.98

Finding the Fourth Proportional to 13,626.26, 18,804.30 and 7,659.98

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Solution

The fourth proportional to 13,626.26, 18,804.30 and 7,659.98 is: 10,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.26 : 18,804.30 = 7,659.98 : x
  2. Step 2: Convert to fraction form
    13,626.26/18,804.30 = 7,659.98/x
  3. Step 3: Cross multiply
    13,626.26x = 18,804.30 × 7,659.98
  4. Step 4: Simplify right side
    13,626.26x = 144,040,561.91
  5. Step 5: Solve for x
    x = 144,040,561.91/13,626.26
  6. Step 6: Final answer
    x = 10,570.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.