Home / 18,410.36-25,398.72-12,824.60

Finding the Fourth Proportional to 18,410.36, 25,398.72 and 12,824.60

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Solution

The fourth proportional to 18,410.36, 25,398.72 and 12,824.60 is: 17,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.36 : 25,398.72 = 12,824.60 : x
  2. Step 2: Convert to fraction form
    18,410.36/25,398.72 = 12,824.60/x
  3. Step 3: Cross multiply
    18,410.36x = 25,398.72 × 12,824.60
  4. Step 4: Simplify right side
    18,410.36x = 325,728,424.51
  5. Step 5: Solve for x
    x = 325,728,424.51/18,410.36
  6. Step 6: Final answer
    x = 17,692.67

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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.