Home / 8,627.83-12,939-2,783.08

Finding the Fourth Proportional to 8,627.83, 12,939 and 2,783.08

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Solution

The fourth proportional to 8,627.83, 12,939 and 2,783.08 is: 4,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.83 : 12,939 = 2,783.08 : x
  2. Step 2: Convert to fraction form
    8,627.83/12,939 = 2,783.08/x
  3. Step 3: Cross multiply
    8,627.83x = 12,939 × 2,783.08
  4. Step 4: Simplify right side
    8,627.83x = 36,010,272.12
  5. Step 5: Solve for x
    x = 36,010,272.12/8,627.83
  6. Step 6: Final answer
    x = 4,173.73

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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.