Home / 13,929.92-19,210.22-11,106.68

Finding the Fourth Proportional to 13,929.92, 19,210.22 and 11,106.68

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Solution

The fourth proportional to 13,929.92, 19,210.22 and 11,106.68 is: 15,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.92 : 19,210.22 = 11,106.68 : x
  2. Step 2: Convert to fraction form
    13,929.92/19,210.22 = 11,106.68/x
  3. Step 3: Cross multiply
    13,929.92x = 19,210.22 × 11,106.68
  4. Step 4: Simplify right side
    13,929.92x = 213,361,614.69
  5. Step 5: Solve for x
    x = 213,361,614.69/13,929.92
  6. Step 6: Final answer
    x = 15,316.79

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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.