Home / 13,171.02-18,179.22-11,043.18

Finding the Fourth Proportional to 13,171.02, 18,179.22 and 11,043.18

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Solution

The fourth proportional to 13,171.02, 18,179.22 and 11,043.18 is: 15,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.02 : 18,179.22 = 11,043.18 : x
  2. Step 2: Convert to fraction form
    13,171.02/18,179.22 = 11,043.18/x
  3. Step 3: Cross multiply
    13,171.02x = 18,179.22 × 11,043.18
  4. Step 4: Simplify right side
    13,171.02x = 200,756,307.82
  5. Step 5: Solve for x
    x = 200,756,307.82/13,171.02
  6. Step 6: Final answer
    x = 15,242.27

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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.