Home / 10,514.73-15,774.40-3,119.77

Finding the Fourth Proportional to 10,514.73, 15,774.40 and 3,119.77

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Solution

The fourth proportional to 10,514.73, 15,774.40 and 3,119.77 is: 4,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.73 : 15,774.40 = 3,119.77 : x
  2. Step 2: Convert to fraction form
    10,514.73/15,774.40 = 3,119.77/x
  3. Step 3: Cross multiply
    10,514.73x = 15,774.40 × 3,119.77
  4. Step 4: Simplify right side
    10,514.73x = 49,212,499.89
  5. Step 5: Solve for x
    x = 49,212,499.89/10,514.73
  6. Step 6: Final answer
    x = 4,680.34

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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.