Home / 12,809.39-19,086.76-11,411.99

Finding the Fourth Proportional to 12,809.39, 19,086.76 and 11,411.99

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Solution

The fourth proportional to 12,809.39, 19,086.76 and 11,411.99 is: 17,004.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.39 : 19,086.76 = 11,411.99 : x
  2. Step 2: Convert to fraction form
    12,809.39/19,086.76 = 11,411.99/x
  3. Step 3: Cross multiply
    12,809.39x = 19,086.76 × 11,411.99
  4. Step 4: Simplify right side
    12,809.39x = 217,817,920.99
  5. Step 5: Solve for x
    x = 217,817,920.99/12,809.39
  6. Step 6: Final answer
    x = 17,004.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.