Home / 13,216.72-19,820.94-4,330

Finding the Fourth Proportional to 13,216.72, 19,820.94 and 4,330

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Solution

The fourth proportional to 13,216.72, 19,820.94 and 4,330 is: 6,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.72 : 19,820.94 = 4,330 : x
  2. Step 2: Convert to fraction form
    13,216.72/19,820.94 = 4,330/x
  3. Step 3: Cross multiply
    13,216.72x = 19,820.94 × 4,330
  4. Step 4: Simplify right side
    13,216.72x = 85,824,670.20
  5. Step 5: Solve for x
    x = 85,824,670.20/13,216.72
  6. Step 6: Final answer
    x = 6,493.64

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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.