Home / 7,917.42-11,877.93-4,217.70

Finding the Fourth Proportional to 7,917.42, 11,877.93 and 4,217.70

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Solution

The fourth proportional to 7,917.42, 11,877.93 and 4,217.70 is: 6,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.42 : 11,877.93 = 4,217.70 : x
  2. Step 2: Convert to fraction form
    7,917.42/11,877.93 = 4,217.70/x
  3. Step 3: Cross multiply
    7,917.42x = 11,877.93 × 4,217.70
  4. Step 4: Simplify right side
    7,917.42x = 50,097,545.36
  5. Step 5: Solve for x
    x = 50,097,545.36/7,917.42
  6. Step 6: Final answer
    x = 6,327.51

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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.