Home / 19,141.31-26,421.59-11,879.06

Finding the Fourth Proportional to 19,141.31, 26,421.59 and 11,879.06

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Solution

The fourth proportional to 19,141.31, 26,421.59 and 11,879.06 is: 16,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.31 : 26,421.59 = 11,879.06 : x
  2. Step 2: Convert to fraction form
    19,141.31/26,421.59 = 11,879.06/x
  3. Step 3: Cross multiply
    19,141.31x = 26,421.59 × 11,879.06
  4. Step 4: Simplify right side
    19,141.31x = 313,863,550.50
  5. Step 5: Solve for x
    x = 313,863,550.50/19,141.31
  6. Step 6: Final answer
    x = 16,397.18

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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.