Home / 14,126.71-21,190.07-5,359.54

Finding the Fourth Proportional to 14,126.71, 21,190.07 and 5,359.54

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Solution

The fourth proportional to 14,126.71, 21,190.07 and 5,359.54 is: 8,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.71 : 21,190.07 = 5,359.54 : x
  2. Step 2: Convert to fraction form
    14,126.71/21,190.07 = 5,359.54/x
  3. Step 3: Cross multiply
    14,126.71x = 21,190.07 × 5,359.54
  4. Step 4: Simplify right side
    14,126.71x = 113,569,027.77
  5. Step 5: Solve for x
    x = 113,569,027.77/14,126.71
  6. Step 6: Final answer
    x = 8,039.31

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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.