Home / 12,169.52-18,256.08-3,847.65

Finding the Fourth Proportional to 12,169.52, 18,256.08 and 3,847.65

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Solution

The fourth proportional to 12,169.52, 18,256.08 and 3,847.65 is: 5,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.52 : 18,256.08 = 3,847.65 : x
  2. Step 2: Convert to fraction form
    12,169.52/18,256.08 = 3,847.65/x
  3. Step 3: Cross multiply
    12,169.52x = 18,256.08 × 3,847.65
  4. Step 4: Simplify right side
    12,169.52x = 70,243,006.21
  5. Step 5: Solve for x
    x = 70,243,006.21/12,169.52
  6. Step 6: Final answer
    x = 5,772.05

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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.