Home / 19,412.25-26,789.88-11,857.35

Finding the Fourth Proportional to 19,412.25, 26,789.88 and 11,857.35

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Solution

The fourth proportional to 19,412.25, 26,789.88 and 11,857.35 is: 16,363.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.25 : 26,789.88 = 11,857.35 : x
  2. Step 2: Convert to fraction form
    19,412.25/26,789.88 = 11,857.35/x
  3. Step 3: Cross multiply
    19,412.25x = 26,789.88 × 11,857.35
  4. Step 4: Simplify right side
    19,412.25x = 317,656,983.62
  5. Step 5: Solve for x
    x = 317,656,983.62/19,412.25
  6. Step 6: Final answer
    x = 16,363.74

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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.