Home / 12,212.76-18,329.94-6,671.16

Finding the Fourth Proportional to 12,212.76, 18,329.94 and 6,671.16

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Solution

The fourth proportional to 12,212.76, 18,329.94 and 6,671.16 is: 10,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.76 : 18,329.94 = 6,671.16 : x
  2. Step 2: Convert to fraction form
    12,212.76/18,329.94 = 6,671.16/x
  3. Step 3: Cross multiply
    12,212.76x = 18,329.94 × 6,671.16
  4. Step 4: Simplify right side
    12,212.76x = 122,281,962.53
  5. Step 5: Solve for x
    x = 122,281,962.53/12,212.76
  6. Step 6: Final answer
    x = 10,012.64

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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.