Home / 19,359.78-26,716.50-10,976.28

Finding the Fourth Proportional to 19,359.78, 26,716.50 and 10,976.28

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Solution

The fourth proportional to 19,359.78, 26,716.50 and 10,976.28 is: 15,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.78 : 26,716.50 = 10,976.28 : x
  2. Step 2: Convert to fraction form
    19,359.78/26,716.50 = 10,976.28/x
  3. Step 3: Cross multiply
    19,359.78x = 26,716.50 × 10,976.28
  4. Step 4: Simplify right side
    19,359.78x = 293,247,784.62
  5. Step 5: Solve for x
    x = 293,247,784.62/19,359.78
  6. Step 6: Final answer
    x = 15,147.27

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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.