Home / 12,218.70-16,852.57-8,448.18

Finding the Fourth Proportional to 12,218.70, 16,852.57 and 8,448.18

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Solution

The fourth proportional to 12,218.70, 16,852.57 and 8,448.18 is: 11,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.70 : 16,852.57 = 8,448.18 : x
  2. Step 2: Convert to fraction form
    12,218.70/16,852.57 = 8,448.18/x
  3. Step 3: Cross multiply
    12,218.70x = 16,852.57 × 8,448.18
  4. Step 4: Simplify right side
    12,218.70x = 142,373,544.82
  5. Step 5: Solve for x
    x = 142,373,544.82/12,218.70
  6. Step 6: Final answer
    x = 11,652.10

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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.