Home / 19,101.26-26,342.34-12,379.88

Finding the Fourth Proportional to 19,101.26, 26,342.34 and 12,379.88

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Solution

The fourth proportional to 19,101.26, 26,342.34 and 12,379.88 is: 17,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.26 : 26,342.34 = 12,379.88 : x
  2. Step 2: Convert to fraction form
    19,101.26/26,342.34 = 12,379.88/x
  3. Step 3: Cross multiply
    19,101.26x = 26,342.34 × 12,379.88
  4. Step 4: Simplify right side
    19,101.26x = 326,115,008.12
  5. Step 5: Solve for x
    x = 326,115,008.12/19,101.26
  6. Step 6: Final answer
    x = 17,072.96

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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.