Home / 19,290.12-26,619.12-10,790.78

Finding the Fourth Proportional to 19,290.12, 26,619.12 and 10,790.78

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Solution

The fourth proportional to 19,290.12, 26,619.12 and 10,790.78 is: 14,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.12 : 26,619.12 = 10,790.78 : x
  2. Step 2: Convert to fraction form
    19,290.12/26,619.12 = 10,790.78/x
  3. Step 3: Cross multiply
    19,290.12x = 26,619.12 × 10,790.78
  4. Step 4: Simplify right side
    19,290.12x = 287,241,067.71
  5. Step 5: Solve for x
    x = 287,241,067.71/19,290.12
  6. Step 6: Final answer
    x = 14,890.58

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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.