Home / 12,210.32-16,850.25-6,621.32

Finding the Fourth Proportional to 12,210.32, 16,850.25 and 6,621.32

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Solution

The fourth proportional to 12,210.32, 16,850.25 and 6,621.32 is: 9,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.32 : 16,850.25 = 6,621.32 : x
  2. Step 2: Convert to fraction form
    12,210.32/16,850.25 = 6,621.32/x
  3. Step 3: Cross multiply
    12,210.32x = 16,850.25 × 6,621.32
  4. Step 4: Simplify right side
    12,210.32x = 111,570,779.97
  5. Step 5: Solve for x
    x = 111,570,779.97/12,210.32
  6. Step 6: Final answer
    x = 9,137.42

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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.