Home / 13,122.96-19,682.04-4,356.72

Finding the Fourth Proportional to 13,122.96, 19,682.04 and 4,356.72

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Solution

The fourth proportional to 13,122.96, 19,682.04 and 4,356.72 is: 6,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.96 : 19,682.04 = 4,356.72 : x
  2. Step 2: Convert to fraction form
    13,122.96/19,682.04 = 4,356.72/x
  3. Step 3: Cross multiply
    13,122.96x = 19,682.04 × 4,356.72
  4. Step 4: Simplify right side
    13,122.96x = 85,749,137.31
  5. Step 5: Solve for x
    x = 85,749,137.31/13,122.96
  6. Step 6: Final answer
    x = 6,534.28

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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.