Home / 18,181.02-25,024.80-12,866.60

Finding the Fourth Proportional to 18,181.02, 25,024.80 and 12,866.60

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Solution

The fourth proportional to 18,181.02, 25,024.80 and 12,866.60 is: 17,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.02 : 25,024.80 = 12,866.60 : x
  2. Step 2: Convert to fraction form
    18,181.02/25,024.80 = 12,866.60/x
  3. Step 3: Cross multiply
    18,181.02x = 25,024.80 × 12,866.60
  4. Step 4: Simplify right side
    18,181.02x = 321,984,091.68
  5. Step 5: Solve for x
    x = 321,984,091.68/18,181.02
  6. Step 6: Final answer
    x = 17,709.90

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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.