Home / 13,706.51-20,559.69-3,318.26

Finding the Fourth Proportional to 13,706.51, 20,559.69 and 3,318.26

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Solution

The fourth proportional to 13,706.51, 20,559.69 and 3,318.26 is: 4,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.51 : 20,559.69 = 3,318.26 : x
  2. Step 2: Convert to fraction form
    13,706.51/20,559.69 = 3,318.26/x
  3. Step 3: Cross multiply
    13,706.51x = 20,559.69 × 3,318.26
  4. Step 4: Simplify right side
    13,706.51x = 68,222,294.14
  5. Step 5: Solve for x
    x = 68,222,294.14/13,706.51
  6. Step 6: Final answer
    x = 4,977.37

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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.