Home / 12,905.23-19,328.96-11,217.73

Finding the Fourth Proportional to 12,905.23, 19,328.96 and 11,217.73

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Solution

The fourth proportional to 12,905.23, 19,328.96 and 11,217.73 is: 16,801.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.23 : 19,328.96 = 11,217.73 : x
  2. Step 2: Convert to fraction form
    12,905.23/19,328.96 = 11,217.73/x
  3. Step 3: Cross multiply
    12,905.23x = 19,328.96 × 11,217.73
  4. Step 4: Simplify right side
    12,905.23x = 216,827,054.46
  5. Step 5: Solve for x
    x = 216,827,054.46/12,905.23
  6. Step 6: Final answer
    x = 16,801.49

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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.