Home / 13,731.02-18,954-8,433.02

Finding the Fourth Proportional to 13,731.02, 18,954 and 8,433.02

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Solution

The fourth proportional to 13,731.02, 18,954 and 8,433.02 is: 11,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.02 : 18,954 = 8,433.02 : x
  2. Step 2: Convert to fraction form
    13,731.02/18,954 = 8,433.02/x
  3. Step 3: Cross multiply
    13,731.02x = 18,954 × 8,433.02
  4. Step 4: Simplify right side
    13,731.02x = 159,839,461.08
  5. Step 5: Solve for x
    x = 159,839,461.08/13,731.02
  6. Step 6: Final answer
    x = 11,640.76

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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.