Home / 12,196.36-16,813.74-8,658.28

Finding the Fourth Proportional to 12,196.36, 16,813.74 and 8,658.28

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Solution

The fourth proportional to 12,196.36, 16,813.74 and 8,658.28 is: 11,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.36 : 16,813.74 = 8,658.28 : x
  2. Step 2: Convert to fraction form
    12,196.36/16,813.74 = 8,658.28/x
  3. Step 3: Cross multiply
    12,196.36x = 16,813.74 × 8,658.28
  4. Step 4: Simplify right side
    12,196.36x = 145,578,068.77
  5. Step 5: Solve for x
    x = 145,578,068.77/12,196.36
  6. Step 6: Final answer
    x = 11,936.19

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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.