Home / 12,429.44-18,650.99-5,855.46

Finding the Fourth Proportional to 12,429.44, 18,650.99 and 5,855.46

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Solution

The fourth proportional to 12,429.44, 18,650.99 and 5,855.46 is: 8,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.44 : 18,650.99 = 5,855.46 : x
  2. Step 2: Convert to fraction form
    12,429.44/18,650.99 = 5,855.46/x
  3. Step 3: Cross multiply
    12,429.44x = 18,650.99 × 5,855.46
  4. Step 4: Simplify right side
    12,429.44x = 109,210,070.60
  5. Step 5: Solve for x
    x = 109,210,070.60/12,429.44
  6. Step 6: Final answer
    x = 8,786.40

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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.