Home / 15,628.39-21,544.76-11,144.36

Finding the Fourth Proportional to 15,628.39, 21,544.76 and 11,144.36

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Solution

The fourth proportional to 15,628.39, 21,544.76 and 11,144.36 is: 15,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.39 : 21,544.76 = 11,144.36 : x
  2. Step 2: Convert to fraction form
    15,628.39/21,544.76 = 11,144.36/x
  3. Step 3: Cross multiply
    15,628.39x = 21,544.76 × 11,144.36
  4. Step 4: Simplify right side
    15,628.39x = 240,102,559.69
  5. Step 5: Solve for x
    x = 240,102,559.69/15,628.39
  6. Step 6: Final answer
    x = 15,363.23

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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.