Home / 19,788.08-27,326.08-12,726.80

Finding the Fourth Proportional to 19,788.08, 27,326.08 and 12,726.80

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Solution

The fourth proportional to 19,788.08, 27,326.08 and 12,726.80 is: 17,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.08 : 27,326.08 = 12,726.80 : x
  2. Step 2: Convert to fraction form
    19,788.08/27,326.08 = 12,726.80/x
  3. Step 3: Cross multiply
    19,788.08x = 27,326.08 × 12,726.80
  4. Step 4: Simplify right side
    19,788.08x = 347,773,554.94
  5. Step 5: Solve for x
    x = 347,773,554.94/19,788.08
  6. Step 6: Final answer
    x = 17,574.90

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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.