Home / 13,710.78-20,537.37-13,555.26

Finding the Fourth Proportional to 13,710.78, 20,537.37 and 13,555.26

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Solution

The fourth proportional to 13,710.78, 20,537.37 and 13,555.26 is: 20,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.78 : 20,537.37 = 13,555.26 : x
  2. Step 2: Convert to fraction form
    13,710.78/20,537.37 = 13,555.26/x
  3. Step 3: Cross multiply
    13,710.78x = 20,537.37 × 13,555.26
  4. Step 4: Simplify right side
    13,710.78x = 278,389,390.07
  5. Step 5: Solve for x
    x = 278,389,390.07/13,710.78
  6. Step 6: Final answer
    x = 20,304.42

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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.