Home / 18,744.75-28,131.03-8,884.05

Finding the Fourth Proportional to 18,744.75, 28,131.03 and 8,884.05

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Solution

The fourth proportional to 18,744.75, 28,131.03 and 8,884.05 is: 13,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.75 : 28,131.03 = 8,884.05 : x
  2. Step 2: Convert to fraction form
    18,744.75/28,131.03 = 8,884.05/x
  3. Step 3: Cross multiply
    18,744.75x = 28,131.03 × 8,884.05
  4. Step 4: Simplify right side
    18,744.75x = 249,917,477.07
  5. Step 5: Solve for x
    x = 249,917,477.07/18,744.75
  6. Step 6: Final answer
    x = 13,332.67

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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.