Home / 14,220.54-19,622.79-10,021.50

Finding the Fourth Proportional to 14,220.54, 19,622.79 and 10,021.50

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Solution

The fourth proportional to 14,220.54, 19,622.79 and 10,021.50 is: 13,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.54 : 19,622.79 = 10,021.50 : x
  2. Step 2: Convert to fraction form
    14,220.54/19,622.79 = 10,021.50/x
  3. Step 3: Cross multiply
    14,220.54x = 19,622.79 × 10,021.50
  4. Step 4: Simplify right side
    14,220.54x = 196,649,789.99
  5. Step 5: Solve for x
    x = 196,649,789.99/14,220.54
  6. Step 6: Final answer
    x = 13,828.57

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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.