Home / 10,519.86-15,779.82-2,728.68

Finding the Fourth Proportional to 10,519.86, 15,779.82 and 2,728.68

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Solution

The fourth proportional to 10,519.86, 15,779.82 and 2,728.68 is: 4,093.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.86 : 15,779.82 = 2,728.68 : x
  2. Step 2: Convert to fraction form
    10,519.86/15,779.82 = 2,728.68/x
  3. Step 3: Cross multiply
    10,519.86x = 15,779.82 × 2,728.68
  4. Step 4: Simplify right side
    10,519.86x = 43,058,079.24
  5. Step 5: Solve for x
    x = 43,058,079.24/10,519.86
  6. Step 6: Final answer
    x = 4,093.03

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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.