Home / 19,045.09-26,279.10-11,966.50

Finding the Fourth Proportional to 19,045.09, 26,279.10 and 11,966.50

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Solution

The fourth proportional to 19,045.09, 26,279.10 and 11,966.50 is: 16,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.09 : 26,279.10 = 11,966.50 : x
  2. Step 2: Convert to fraction form
    19,045.09/26,279.10 = 11,966.50/x
  3. Step 3: Cross multiply
    19,045.09x = 26,279.10 × 11,966.50
  4. Step 4: Simplify right side
    19,045.09x = 314,468,850.15
  5. Step 5: Solve for x
    x = 314,468,850.15/19,045.09
  6. Step 6: Final answer
    x = 16,511.81

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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.