Home / 12,538.95-18,811.69-3,654.08

Finding the Fourth Proportional to 12,538.95, 18,811.69 and 3,654.08

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Solution

The fourth proportional to 12,538.95, 18,811.69 and 3,654.08 is: 5,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.95 : 18,811.69 = 3,654.08 : x
  2. Step 2: Convert to fraction form
    12,538.95/18,811.69 = 3,654.08/x
  3. Step 3: Cross multiply
    12,538.95x = 18,811.69 × 3,654.08
  4. Step 4: Simplify right side
    12,538.95x = 68,739,408.10
  5. Step 5: Solve for x
    x = 68,739,408.10/12,538.95
  6. Step 6: Final answer
    x = 5,482.07

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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.