Home / 18,447.03-25,478.15-13,433.67

Finding the Fourth Proportional to 18,447.03, 25,478.15 and 13,433.67

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Solution

The fourth proportional to 18,447.03, 25,478.15 and 13,433.67 is: 18,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.03 : 25,478.15 = 13,433.67 : x
  2. Step 2: Convert to fraction form
    18,447.03/25,478.15 = 13,433.67/x
  3. Step 3: Cross multiply
    18,447.03x = 25,478.15 × 13,433.67
  4. Step 4: Simplify right side
    18,447.03x = 342,265,059.31
  5. Step 5: Solve for x
    x = 342,265,059.31/18,447.03
  6. Step 6: Final answer
    x = 18,553.94

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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.