Home / 19,767.69-27,279.30-10,815.03

Finding the Fourth Proportional to 19,767.69, 27,279.30 and 10,815.03

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Solution

The fourth proportional to 19,767.69, 27,279.30 and 10,815.03 is: 14,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.69 : 27,279.30 = 10,815.03 : x
  2. Step 2: Convert to fraction form
    19,767.69/27,279.30 = 10,815.03/x
  3. Step 3: Cross multiply
    19,767.69x = 27,279.30 × 10,815.03
  4. Step 4: Simplify right side
    19,767.69x = 295,026,447.88
  5. Step 5: Solve for x
    x = 295,026,447.88/19,767.69
  6. Step 6: Final answer
    x = 14,924.68

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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.