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Finding the Fourth Proportional to 12,245.36, 16,905.54 and 9,368.68

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Solution

The fourth proportional to 12,245.36, 16,905.54 and 9,368.68 is: 12,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.36 : 16,905.54 = 9,368.68 : x
  2. Step 2: Convert to fraction form
    12,245.36/16,905.54 = 9,368.68/x
  3. Step 3: Cross multiply
    12,245.36x = 16,905.54 × 9,368.68
  4. Step 4: Simplify right side
    12,245.36x = 158,382,594.49
  5. Step 5: Solve for x
    x = 158,382,594.49/12,245.36
  6. Step 6: Final answer
    x = 12,934.09

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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.