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Finding the Fourth Proportional to 18,558.36, 27,840.45 and 6,075.45

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Solution

The fourth proportional to 18,558.36, 27,840.45 and 6,075.45 is: 9,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.36 : 27,840.45 = 6,075.45 : x
  2. Step 2: Convert to fraction form
    18,558.36/27,840.45 = 6,075.45/x
  3. Step 3: Cross multiply
    18,558.36x = 27,840.45 × 6,075.45
  4. Step 4: Simplify right side
    18,558.36x = 169,143,261.95
  5. Step 5: Solve for x
    x = 169,143,261.95/18,558.36
  6. Step 6: Final answer
    x = 9,114.13

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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.