Home / 18,964.45-26,160.06-11,005.66

Finding the Fourth Proportional to 18,964.45, 26,160.06 and 11,005.66

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Solution

The fourth proportional to 18,964.45, 26,160.06 and 11,005.66 is: 15,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.45 : 26,160.06 = 11,005.66 : x
  2. Step 2: Convert to fraction form
    18,964.45/26,160.06 = 11,005.66/x
  3. Step 3: Cross multiply
    18,964.45x = 26,160.06 × 11,005.66
  4. Step 4: Simplify right side
    18,964.45x = 287,908,725.94
  5. Step 5: Solve for x
    x = 287,908,725.94/18,964.45
  6. Step 6: Final answer
    x = 15,181.50

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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.