Home / 19,211.88-26,513.20-10,828.38

Finding the Fourth Proportional to 19,211.88, 26,513.20 and 10,828.38

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Solution

The fourth proportional to 19,211.88, 26,513.20 and 10,828.38 is: 14,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.88 : 26,513.20 = 10,828.38 : x
  2. Step 2: Convert to fraction form
    19,211.88/26,513.20 = 10,828.38/x
  3. Step 3: Cross multiply
    19,211.88x = 26,513.20 × 10,828.38
  4. Step 4: Simplify right side
    19,211.88x = 287,095,004.62
  5. Step 5: Solve for x
    x = 287,095,004.62/19,211.88
  6. Step 6: Final answer
    x = 14,943.62

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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.