Home / 18,128.02-25,021.56-11,840.26

Finding the Fourth Proportional to 18,128.02, 25,021.56 and 11,840.26

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Solution

The fourth proportional to 18,128.02, 25,021.56 and 11,840.26 is: 16,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.02 : 25,021.56 = 11,840.26 : x
  2. Step 2: Convert to fraction form
    18,128.02/25,021.56 = 11,840.26/x
  3. Step 3: Cross multiply
    18,128.02x = 25,021.56 × 11,840.26
  4. Step 4: Simplify right side
    18,128.02x = 296,261,776.01
  5. Step 5: Solve for x
    x = 296,261,776.01/18,128.02
  6. Step 6: Final answer
    x = 16,342.75

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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.