Home / 7,212.63-9,951.90-4,381.50

Finding the Fourth Proportional to 7,212.63, 9,951.90 and 4,381.50

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Solution

The fourth proportional to 7,212.63, 9,951.90 and 4,381.50 is: 6,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.63 : 9,951.90 = 4,381.50 : x
  2. Step 2: Convert to fraction form
    7,212.63/9,951.90 = 4,381.50/x
  3. Step 3: Cross multiply
    7,212.63x = 9,951.90 × 4,381.50
  4. Step 4: Simplify right side
    7,212.63x = 43,604,249.85
  5. Step 5: Solve for x
    x = 43,604,249.85/7,212.63
  6. Step 6: Final answer
    x = 6,045.54

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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.