Home / 14,227.36-19,628.24-8,640.16

Finding the Fourth Proportional to 14,227.36, 19,628.24 and 8,640.16

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Solution

The fourth proportional to 14,227.36, 19,628.24 and 8,640.16 is: 11,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,227.36 : 19,628.24 = 8,640.16 : x
  2. Step 2: Convert to fraction form
    14,227.36/19,628.24 = 8,640.16/x
  3. Step 3: Cross multiply
    14,227.36x = 19,628.24 × 8,640.16
  4. Step 4: Simplify right side
    14,227.36x = 169,591,134.12
  5. Step 5: Solve for x
    x = 169,591,134.12/14,227.36
  6. Step 6: Final answer
    x = 11,920.07

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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.