Home / 14,122.87-19,490.17-8,458.54

Finding the Fourth Proportional to 14,122.87, 19,490.17 and 8,458.54

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Solution

The fourth proportional to 14,122.87, 19,490.17 and 8,458.54 is: 11,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.87 : 19,490.17 = 8,458.54 : x
  2. Step 2: Convert to fraction form
    14,122.87/19,490.17 = 8,458.54/x
  3. Step 3: Cross multiply
    14,122.87x = 19,490.17 × 8,458.54
  4. Step 4: Simplify right side
    14,122.87x = 164,858,403.70
  5. Step 5: Solve for x
    x = 164,858,403.70/14,122.87
  6. Step 6: Final answer
    x = 11,673.15

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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.