Home / 19,020.58-26,239.56-12,308.37

Finding the Fourth Proportional to 19,020.58, 26,239.56 and 12,308.37

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Solution

The fourth proportional to 19,020.58, 26,239.56 and 12,308.37 is: 16,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.58 : 26,239.56 = 12,308.37 : x
  2. Step 2: Convert to fraction form
    19,020.58/26,239.56 = 12,308.37/x
  3. Step 3: Cross multiply
    19,020.58x = 26,239.56 × 12,308.37
  4. Step 4: Simplify right side
    19,020.58x = 322,966,213.12
  5. Step 5: Solve for x
    x = 322,966,213.12/19,020.58
  6. Step 6: Final answer
    x = 16,979.83

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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.