Home / 12,408.04-18,618.90-5,482.36

Finding the Fourth Proportional to 12,408.04, 18,618.90 and 5,482.36

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Solution

The fourth proportional to 12,408.04, 18,618.90 and 5,482.36 is: 8,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.04 : 18,618.90 = 5,482.36 : x
  2. Step 2: Convert to fraction form
    12,408.04/18,618.90 = 5,482.36/x
  3. Step 3: Cross multiply
    12,408.04x = 18,618.90 × 5,482.36
  4. Step 4: Simplify right side
    12,408.04x = 102,075,512.60
  5. Step 5: Solve for x
    x = 102,075,512.60/12,408.04
  6. Step 6: Final answer
    x = 8,226.56

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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.