Home / 7,216.90-9,960.09-4,421.70

Finding the Fourth Proportional to 7,216.90, 9,960.09 and 4,421.70

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Solution

The fourth proportional to 7,216.90, 9,960.09 and 4,421.70 is: 6,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.90 : 9,960.09 = 4,421.70 : x
  2. Step 2: Convert to fraction form
    7,216.90/9,960.09 = 4,421.70/x
  3. Step 3: Cross multiply
    7,216.90x = 9,960.09 × 4,421.70
  4. Step 4: Simplify right side
    7,216.90x = 44,040,529.95
  5. Step 5: Solve for x
    x = 44,040,529.95/7,216.90
  6. Step 6: Final answer
    x = 6,102.42

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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.