Home / 15,140.36-20,896.20-8,851.52

Finding the Fourth Proportional to 15,140.36, 20,896.20 and 8,851.52

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Solution

The fourth proportional to 15,140.36, 20,896.20 and 8,851.52 is: 12,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.36 : 20,896.20 = 8,851.52 : x
  2. Step 2: Convert to fraction form
    15,140.36/20,896.20 = 8,851.52/x
  3. Step 3: Cross multiply
    15,140.36x = 20,896.20 × 8,851.52
  4. Step 4: Simplify right side
    15,140.36x = 184,963,132.22
  5. Step 5: Solve for x
    x = 184,963,132.22/15,140.36
  6. Step 6: Final answer
    x = 12,216.56

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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.