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Finding the Fourth Proportional to 12,018.56, 18,029.56 and 3,699.26

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Solution

The fourth proportional to 12,018.56, 18,029.56 and 3,699.26 is: 5,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.56 : 18,029.56 = 3,699.26 : x
  2. Step 2: Convert to fraction form
    12,018.56/18,029.56 = 3,699.26/x
  3. Step 3: Cross multiply
    12,018.56x = 18,029.56 × 3,699.26
  4. Step 4: Simplify right side
    12,018.56x = 66,696,030.13
  5. Step 5: Solve for x
    x = 66,696,030.13/12,018.56
  6. Step 6: Final answer
    x = 5,549.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.