Home / 19,377.45-26,740.65-10,879.36

Finding the Fourth Proportional to 19,377.45, 26,740.65 and 10,879.36

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Solution

The fourth proportional to 19,377.45, 26,740.65 and 10,879.36 is: 15,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.45 : 26,740.65 = 10,879.36 : x
  2. Step 2: Convert to fraction form
    19,377.45/26,740.65 = 10,879.36/x
  3. Step 3: Cross multiply
    19,377.45x = 26,740.65 × 10,879.36
  4. Step 4: Simplify right side
    19,377.45x = 290,921,103.59
  5. Step 5: Solve for x
    x = 290,921,103.59/19,377.45
  6. Step 6: Final answer
    x = 15,013.38

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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.