Home / 19,146.37-28,717.27-5,107.45

Finding the Fourth Proportional to 19,146.37, 28,717.27 and 5,107.45

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Solution

The fourth proportional to 19,146.37, 28,717.27 and 5,107.45 is: 7,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.37 : 28,717.27 = 5,107.45 : x
  2. Step 2: Convert to fraction form
    19,146.37/28,717.27 = 5,107.45/x
  3. Step 3: Cross multiply
    19,146.37x = 28,717.27 × 5,107.45
  4. Step 4: Simplify right side
    19,146.37x = 146,672,020.66
  5. Step 5: Solve for x
    x = 146,672,020.66/19,146.37
  6. Step 6: Final answer
    x = 7,660.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.