Home / 13,907.36-20,867.40-7,584.56

Finding the Fourth Proportional to 13,907.36, 20,867.40 and 7,584.56

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Solution

The fourth proportional to 13,907.36, 20,867.40 and 7,584.56 is: 11,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.36 : 20,867.40 = 7,584.56 : x
  2. Step 2: Convert to fraction form
    13,907.36/20,867.40 = 7,584.56/x
  3. Step 3: Cross multiply
    13,907.36x = 20,867.40 × 7,584.56
  4. Step 4: Simplify right side
    13,907.36x = 158,270,047.34
  5. Step 5: Solve for x
    x = 158,270,047.34/13,907.36
  6. Step 6: Final answer
    x = 11,380.31

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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.