Home / 11,763.03-16,212.78-11,209.40

Finding the Fourth Proportional to 11,763.03, 16,212.78 and 11,209.40

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Solution

The fourth proportional to 11,763.03, 16,212.78 and 11,209.40 is: 15,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.03 : 16,212.78 = 11,209.40 : x
  2. Step 2: Convert to fraction form
    11,763.03/16,212.78 = 11,209.40/x
  3. Step 3: Cross multiply
    11,763.03x = 16,212.78 × 11,209.40
  4. Step 4: Simplify right side
    11,763.03x = 181,735,455.07
  5. Step 5: Solve for x
    x = 181,735,455.07/11,763.03
  6. Step 6: Final answer
    x = 15,449.71

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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.