Home / 7,914.85-11,877.57-4,219.63

Finding the Fourth Proportional to 7,914.85, 11,877.57 and 4,219.63

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Solution

The fourth proportional to 7,914.85, 11,877.57 and 4,219.63 is: 6,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.85 : 11,877.57 = 4,219.63 : x
  2. Step 2: Convert to fraction form
    7,914.85/11,877.57 = 4,219.63/x
  3. Step 3: Cross multiply
    7,914.85x = 11,877.57 × 4,219.63
  4. Step 4: Simplify right side
    7,914.85x = 50,118,921.01
  5. Step 5: Solve for x
    x = 50,118,921.01/7,914.85
  6. Step 6: Final answer
    x = 6,332.27

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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.