Home / 15,155.02-20,912.54-11,178.33

Finding the Fourth Proportional to 15,155.02, 20,912.54 and 11,178.33

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Solution

The fourth proportional to 15,155.02, 20,912.54 and 11,178.33 is: 15,425.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.02 : 20,912.54 = 11,178.33 : x
  2. Step 2: Convert to fraction form
    15,155.02/20,912.54 = 11,178.33/x
  3. Step 3: Cross multiply
    15,155.02x = 20,912.54 × 11,178.33
  4. Step 4: Simplify right side
    15,155.02x = 233,767,273.26
  5. Step 5: Solve for x
    x = 233,767,273.26/15,155.02
  6. Step 6: Final answer
    x = 15,425.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.