Home / 12,726.48-19,101.88-7,805.74

Finding the Fourth Proportional to 12,726.48, 19,101.88 and 7,805.74

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Solution

The fourth proportional to 12,726.48, 19,101.88 and 7,805.74 is: 11,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.48 : 19,101.88 = 7,805.74 : x
  2. Step 2: Convert to fraction form
    12,726.48/19,101.88 = 7,805.74/x
  3. Step 3: Cross multiply
    12,726.48x = 19,101.88 × 7,805.74
  4. Step 4: Simplify right side
    12,726.48x = 149,104,308.79
  5. Step 5: Solve for x
    x = 149,104,308.79/12,726.48
  6. Step 6: Final answer
    x = 11,716.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.