Home / 7,877.34-11,818.05-3,493.74

Finding the Fourth Proportional to 7,877.34, 11,818.05 and 3,493.74

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Solution

The fourth proportional to 7,877.34, 11,818.05 and 3,493.74 is: 5,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.34 : 11,818.05 = 3,493.74 : x
  2. Step 2: Convert to fraction form
    7,877.34/11,818.05 = 3,493.74/x
  3. Step 3: Cross multiply
    7,877.34x = 11,818.05 × 3,493.74
  4. Step 4: Simplify right side
    7,877.34x = 41,289,194.01
  5. Step 5: Solve for x
    x = 41,289,194.01/7,877.34
  6. Step 6: Final answer
    x = 5,241.51

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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.