Home / 13,716.54-18,923.76-9,003.42

Finding the Fourth Proportional to 13,716.54, 18,923.76 and 9,003.42

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Solution

The fourth proportional to 13,716.54, 18,923.76 and 9,003.42 is: 12,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.54 : 18,923.76 = 9,003.42 : x
  2. Step 2: Convert to fraction form
    13,716.54/18,923.76 = 9,003.42/x
  3. Step 3: Cross multiply
    13,716.54x = 18,923.76 × 9,003.42
  4. Step 4: Simplify right side
    13,716.54x = 170,378,559.26
  5. Step 5: Solve for x
    x = 170,378,559.26/13,716.54
  6. Step 6: Final answer
    x = 12,421.39

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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.