Home / 18,434.56-25,450.88-12,467.20

Finding the Fourth Proportional to 18,434.56, 25,450.88 and 12,467.20

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Solution

The fourth proportional to 18,434.56, 25,450.88 and 12,467.20 is: 17,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.56 : 25,450.88 = 12,467.20 : x
  2. Step 2: Convert to fraction form
    18,434.56/25,450.88 = 12,467.20/x
  3. Step 3: Cross multiply
    18,434.56x = 25,450.88 × 12,467.20
  4. Step 4: Simplify right side
    18,434.56x = 317,301,211.14
  5. Step 5: Solve for x
    x = 317,301,211.14/18,434.56
  6. Step 6: Final answer
    x = 17,212.30

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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.