Home / 7,917.88-10,926.34-4,380.86

Finding the Fourth Proportional to 7,917.88, 10,926.34 and 4,380.86

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Solution

The fourth proportional to 7,917.88, 10,926.34 and 4,380.86 is: 6,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.88 : 10,926.34 = 4,380.86 : x
  2. Step 2: Convert to fraction form
    7,917.88/10,926.34 = 4,380.86/x
  3. Step 3: Cross multiply
    7,917.88x = 10,926.34 × 4,380.86
  4. Step 4: Simplify right side
    7,917.88x = 47,866,765.85
  5. Step 5: Solve for x
    x = 47,866,765.85/7,917.88
  6. Step 6: Final answer
    x = 6,045.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.