Home / 19,867.56-27,425.64-13,408.60

Finding the Fourth Proportional to 19,867.56, 27,425.64 and 13,408.60

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Solution

The fourth proportional to 19,867.56, 27,425.64 and 13,408.60 is: 18,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.56 : 27,425.64 = 13,408.60 : x
  2. Step 2: Convert to fraction form
    19,867.56/27,425.64 = 13,408.60/x
  3. Step 3: Cross multiply
    19,867.56x = 27,425.64 × 13,408.60
  4. Step 4: Simplify right side
    19,867.56x = 367,739,436.50
  5. Step 5: Solve for x
    x = 367,739,436.50/19,867.56
  6. Step 6: Final answer
    x = 18,509.54

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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.