Home / 19,403.15-26,778.57-10,790.19

Finding the Fourth Proportional to 19,403.15, 26,778.57 and 10,790.19

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Solution

The fourth proportional to 19,403.15, 26,778.57 and 10,790.19 is: 14,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.15 : 26,778.57 = 10,790.19 : x
  2. Step 2: Convert to fraction form
    19,403.15/26,778.57 = 10,790.19/x
  3. Step 3: Cross multiply
    19,403.15x = 26,778.57 × 10,790.19
  4. Step 4: Simplify right side
    19,403.15x = 288,945,958.65
  5. Step 5: Solve for x
    x = 288,945,958.65/19,403.15
  6. Step 6: Final answer
    x = 14,891.70

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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.