Home / 15,450.20-21,323.13-10,078.37

Finding the Fourth Proportional to 15,450.20, 21,323.13 and 10,078.37

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Solution

The fourth proportional to 15,450.20, 21,323.13 and 10,078.37 is: 13,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.20 : 21,323.13 = 10,078.37 : x
  2. Step 2: Convert to fraction form
    15,450.20/21,323.13 = 10,078.37/x
  3. Step 3: Cross multiply
    15,450.20x = 21,323.13 × 10,078.37
  4. Step 4: Simplify right side
    15,450.20x = 214,902,287.08
  5. Step 5: Solve for x
    x = 214,902,287.08/15,450.20
  6. Step 6: Final answer
    x = 13,909.36

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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.