Home / 19,121.96-26,390.94-10,739

Finding the Fourth Proportional to 19,121.96, 26,390.94 and 10,739

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Solution

The fourth proportional to 19,121.96, 26,390.94 and 10,739 is: 14,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.96 : 26,390.94 = 10,739 : x
  2. Step 2: Convert to fraction form
    19,121.96/26,390.94 = 10,739/x
  3. Step 3: Cross multiply
    19,121.96x = 26,390.94 × 10,739
  4. Step 4: Simplify right side
    19,121.96x = 283,412,304.66
  5. Step 5: Solve for x
    x = 283,412,304.66/19,121.96
  6. Step 6: Final answer
    x = 14,821.30

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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.