Home / 12,897.72-19,346.59-8,514.15

Finding the Fourth Proportional to 12,897.72, 19,346.59 and 8,514.15

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Solution

The fourth proportional to 12,897.72, 19,346.59 and 8,514.15 is: 12,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.72 : 19,346.59 = 8,514.15 : x
  2. Step 2: Convert to fraction form
    12,897.72/19,346.59 = 8,514.15/x
  3. Step 3: Cross multiply
    12,897.72x = 19,346.59 × 8,514.15
  4. Step 4: Simplify right side
    12,897.72x = 164,719,769.25
  5. Step 5: Solve for x
    x = 164,719,769.25/12,897.72
  6. Step 6: Final answer
    x = 12,771.23

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Similar ratio
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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.