Home / 7,917.57-10,926.12-4,380.69

Finding the Fourth Proportional to 7,917.57, 10,926.12 and 4,380.69

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Solution

The fourth proportional to 7,917.57, 10,926.12 and 4,380.69 is: 6,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.57 : 10,926.12 = 4,380.69 : x
  2. Step 2: Convert to fraction form
    7,917.57/10,926.12 = 4,380.69/x
  3. Step 3: Cross multiply
    7,917.57x = 10,926.12 × 4,380.69
  4. Step 4: Simplify right side
    7,917.57x = 47,863,944.62
  5. Step 5: Solve for x
    x = 47,863,944.62/7,917.57
  6. Step 6: Final answer
    x = 6,045.28

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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.