Home / 10,514.55-14,511.11-7,857.34

Finding the Fourth Proportional to 10,514.55, 14,511.11 and 7,857.34

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Solution

The fourth proportional to 10,514.55, 14,511.11 and 7,857.34 is: 10,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.55 : 14,511.11 = 7,857.34 : x
  2. Step 2: Convert to fraction form
    10,514.55/14,511.11 = 7,857.34/x
  3. Step 3: Cross multiply
    10,514.55x = 14,511.11 × 7,857.34
  4. Step 4: Simplify right side
    10,514.55x = 114,018,725.05
  5. Step 5: Solve for x
    x = 114,018,725.05/10,514.55
  6. Step 6: Final answer
    x = 10,843.90

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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.