Home / 12,809.27-19,200.74-9,290.49

Finding the Fourth Proportional to 12,809.27, 19,200.74 and 9,290.49

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Solution

The fourth proportional to 12,809.27, 19,200.74 and 9,290.49 is: 13,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.27 : 19,200.74 = 9,290.49 : x
  2. Step 2: Convert to fraction form
    12,809.27/19,200.74 = 9,290.49/x
  3. Step 3: Cross multiply
    12,809.27x = 19,200.74 × 9,290.49
  4. Step 4: Simplify right side
    12,809.27x = 178,384,236.51
  5. Step 5: Solve for x
    x = 178,384,236.51/12,809.27
  6. Step 6: Final answer
    x = 13,926.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.