Home / 12,132.08-16,772.32-12,021.38

Finding the Fourth Proportional to 12,132.08, 16,772.32 and 12,021.38

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Solution

The fourth proportional to 12,132.08, 16,772.32 and 12,021.38 is: 16,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.08 : 16,772.32 = 12,021.38 : x
  2. Step 2: Convert to fraction form
    12,132.08/16,772.32 = 12,021.38/x
  3. Step 3: Cross multiply
    12,132.08x = 16,772.32 × 12,021.38
  4. Step 4: Simplify right side
    12,132.08x = 201,626,432.20
  5. Step 5: Solve for x
    x = 201,626,432.20/12,132.08
  6. Step 6: Final answer
    x = 16,619.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.