Home / 8,309.78-12,464.60-3,045.14

Finding the Fourth Proportional to 8,309.78, 12,464.60 and 3,045.14

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Solution

The fourth proportional to 8,309.78, 12,464.60 and 3,045.14 is: 4,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.78 : 12,464.60 = 3,045.14 : x
  2. Step 2: Convert to fraction form
    8,309.78/12,464.60 = 3,045.14/x
  3. Step 3: Cross multiply
    8,309.78x = 12,464.60 × 3,045.14
  4. Step 4: Simplify right side
    8,309.78x = 37,956,374.50
  5. Step 5: Solve for x
    x = 37,956,374.50/8,309.78
  6. Step 6: Final answer
    x = 4,567.68

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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.