Home / 13,918.08-20,883.60-13,542.24

Finding the Fourth Proportional to 13,918.08, 20,883.60 and 13,542.24

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Solution

The fourth proportional to 13,918.08, 20,883.60 and 13,542.24 is: 20,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.08 : 20,883.60 = 13,542.24 : x
  2. Step 2: Convert to fraction form
    13,918.08/20,883.60 = 13,542.24/x
  3. Step 3: Cross multiply
    13,918.08x = 20,883.60 × 13,542.24
  4. Step 4: Simplify right side
    13,918.08x = 282,810,723.26
  5. Step 5: Solve for x
    x = 282,810,723.26/13,918.08
  6. Step 6: Final answer
    x = 20,319.67

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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.