Home / 19,389.78-26,757.95-11,006.28

Finding the Fourth Proportional to 19,389.78, 26,757.95 and 11,006.28

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Solution

The fourth proportional to 19,389.78, 26,757.95 and 11,006.28 is: 15,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.78 : 26,757.95 = 11,006.28 : x
  2. Step 2: Convert to fraction form
    19,389.78/26,757.95 = 11,006.28/x
  3. Step 3: Cross multiply
    19,389.78x = 26,757.95 × 11,006.28
  4. Step 4: Simplify right side
    19,389.78x = 294,505,434.89
  5. Step 5: Solve for x
    x = 294,505,434.89/19,389.78
  6. Step 6: Final answer
    x = 15,188.69

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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.