Home / 13,103.54-18,083.23-7,135.46

Finding the Fourth Proportional to 13,103.54, 18,083.23 and 7,135.46

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Solution

The fourth proportional to 13,103.54, 18,083.23 and 7,135.46 is: 9,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.54 : 18,083.23 = 7,135.46 : x
  2. Step 2: Convert to fraction form
    13,103.54/18,083.23 = 7,135.46/x
  3. Step 3: Cross multiply
    13,103.54x = 18,083.23 × 7,135.46
  4. Step 4: Simplify right side
    13,103.54x = 129,032,164.34
  5. Step 5: Solve for x
    x = 129,032,164.34/13,103.54
  6. Step 6: Final answer
    x = 9,847.12

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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.