Home / 18,436.56-25,453.64-12,469.20

Finding the Fourth Proportional to 18,436.56, 25,453.64 and 12,469.20

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Solution

The fourth proportional to 18,436.56, 25,453.64 and 12,469.20 is: 17,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.56 : 25,453.64 = 12,469.20 : x
  2. Step 2: Convert to fraction form
    18,436.56/25,453.64 = 12,469.20/x
  3. Step 3: Cross multiply
    18,436.56x = 25,453.64 × 12,469.20
  4. Step 4: Simplify right side
    18,436.56x = 317,386,527.89
  5. Step 5: Solve for x
    x = 317,386,527.89/18,436.56
  6. Step 6: Final answer
    x = 17,215.06

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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.