Home / 18,384.36-25,362.90-12,798.60

Finding the Fourth Proportional to 18,384.36, 25,362.90 and 12,798.60

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Solution

The fourth proportional to 18,384.36, 25,362.90 and 12,798.60 is: 17,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.36 : 25,362.90 = 12,798.60 : x
  2. Step 2: Convert to fraction form
    18,384.36/25,362.90 = 12,798.60/x
  3. Step 3: Cross multiply
    18,384.36x = 25,362.90 × 12,798.60
  4. Step 4: Simplify right side
    18,384.36x = 324,609,611.94
  5. Step 5: Solve for x
    x = 324,609,611.94/18,384.36
  6. Step 6: Final answer
    x = 17,656.84

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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.