Home / 11,428.90-15,736.83-10,004.61

Finding the Fourth Proportional to 11,428.90, 15,736.83 and 10,004.61

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Solution

The fourth proportional to 11,428.90, 15,736.83 and 10,004.61 is: 13,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.90 : 15,736.83 = 10,004.61 : x
  2. Step 2: Convert to fraction form
    11,428.90/15,736.83 = 10,004.61/x
  3. Step 3: Cross multiply
    11,428.90x = 15,736.83 × 10,004.61
  4. Step 4: Simplify right side
    11,428.90x = 157,440,924.56
  5. Step 5: Solve for x
    x = 157,440,924.56/11,428.90
  6. Step 6: Final answer
    x = 13,775.69

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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.