Home / 16,826.87-25,239.39-5,139.17

Finding the Fourth Proportional to 16,826.87, 25,239.39 and 5,139.17

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Solution

The fourth proportional to 16,826.87, 25,239.39 and 5,139.17 is: 7,708.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,826.87 : 25,239.39 = 5,139.17 : x
  2. Step 2: Convert to fraction form
    16,826.87/25,239.39 = 5,139.17/x
  3. Step 3: Cross multiply
    16,826.87x = 25,239.39 × 5,139.17
  4. Step 4: Simplify right side
    16,826.87x = 129,709,490.21
  5. Step 5: Solve for x
    x = 129,709,490.21/16,826.87
  6. Step 6: Final answer
    x = 7,708.48

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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.