Home / 7,216.72-9,956.87-4,191.55

Finding the Fourth Proportional to 7,216.72, 9,956.87 and 4,191.55

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Solution

The fourth proportional to 7,216.72, 9,956.87 and 4,191.55 is: 5,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.72 : 9,956.87 = 4,191.55 : x
  2. Step 2: Convert to fraction form
    7,216.72/9,956.87 = 4,191.55/x
  3. Step 3: Cross multiply
    7,216.72x = 9,956.87 × 4,191.55
  4. Step 4: Simplify right side
    7,216.72x = 41,734,697.49
  5. Step 5: Solve for x
    x = 41,734,697.49/7,216.72
  6. Step 6: Final answer
    x = 5,783.06

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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.