Home / 13,579.76-20,369.64-4,346.48

Finding the Fourth Proportional to 13,579.76, 20,369.64 and 4,346.48

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Solution

The fourth proportional to 13,579.76, 20,369.64 and 4,346.48 is: 6,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.76 : 20,369.64 = 4,346.48 : x
  2. Step 2: Convert to fraction form
    13,579.76/20,369.64 = 4,346.48/x
  3. Step 3: Cross multiply
    13,579.76x = 20,369.64 × 4,346.48
  4. Step 4: Simplify right side
    13,579.76x = 88,536,232.87
  5. Step 5: Solve for x
    x = 88,536,232.87/13,579.76
  6. Step 6: Final answer
    x = 6,519.72

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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.