Home / 8,725.83-13,089.87-3,178.32

Finding the Fourth Proportional to 8,725.83, 13,089.87 and 3,178.32

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Solution

The fourth proportional to 8,725.83, 13,089.87 and 3,178.32 is: 4,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.83 : 13,089.87 = 3,178.32 : x
  2. Step 2: Convert to fraction form
    8,725.83/13,089.87 = 3,178.32/x
  3. Step 3: Cross multiply
    8,725.83x = 13,089.87 × 3,178.32
  4. Step 4: Simplify right side
    8,725.83x = 41,603,795.62
  5. Step 5: Solve for x
    x = 41,603,795.62/8,725.83
  6. Step 6: Final answer
    x = 4,767.89

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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.