Home / 12,866.32-19,385.96-11,635.12

Finding the Fourth Proportional to 12,866.32, 19,385.96 and 11,635.12

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Solution

The fourth proportional to 12,866.32, 19,385.96 and 11,635.12 is: 17,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.32 : 19,385.96 = 11,635.12 : x
  2. Step 2: Convert to fraction form
    12,866.32/19,385.96 = 11,635.12/x
  3. Step 3: Cross multiply
    12,866.32x = 19,385.96 × 11,635.12
  4. Step 4: Simplify right side
    12,866.32x = 225,557,970.92
  5. Step 5: Solve for x
    x = 225,557,970.92/12,866.32
  6. Step 6: Final answer
    x = 17,530.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.