Home / 13,574.22-20,364.51-4,213.76

Finding the Fourth Proportional to 13,574.22, 20,364.51 and 4,213.76

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Solution

The fourth proportional to 13,574.22, 20,364.51 and 4,213.76 is: 6,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.22 : 20,364.51 = 4,213.76 : x
  2. Step 2: Convert to fraction form
    13,574.22/20,364.51 = 4,213.76/x
  3. Step 3: Cross multiply
    13,574.22x = 20,364.51 × 4,213.76
  4. Step 4: Simplify right side
    13,574.22x = 85,811,071.64
  5. Step 5: Solve for x
    x = 85,811,071.64/13,574.22
  6. Step 6: Final answer
    x = 6,321.62

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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.