Home / 16,779.45-25,163.10-6,781.08

Finding the Fourth Proportional to 16,779.45, 25,163.10 and 6,781.08

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Solution

The fourth proportional to 16,779.45, 25,163.10 and 6,781.08 is: 10,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.45 : 25,163.10 = 6,781.08 : x
  2. Step 2: Convert to fraction form
    16,779.45/25,163.10 = 6,781.08/x
  3. Step 3: Cross multiply
    16,779.45x = 25,163.10 × 6,781.08
  4. Step 4: Simplify right side
    16,779.45x = 170,632,994.15
  5. Step 5: Solve for x
    x = 170,632,994.15/16,779.45
  6. Step 6: Final answer
    x = 10,169.16

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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.