Home / 12,074.12-16,661.32-6,768.21

Finding the Fourth Proportional to 12,074.12, 16,661.32 and 6,768.21

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Solution

The fourth proportional to 12,074.12, 16,661.32 and 6,768.21 is: 9,339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.12 : 16,661.32 = 6,768.21 : x
  2. Step 2: Convert to fraction form
    12,074.12/16,661.32 = 6,768.21/x
  3. Step 3: Cross multiply
    12,074.12x = 16,661.32 × 6,768.21
  4. Step 4: Simplify right side
    12,074.12x = 112,767,312.64
  5. Step 5: Solve for x
    x = 112,767,312.64/12,074.12
  6. Step 6: Final answer
    x = 9,339.59

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Half scale
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Double scale
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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.