Home / 13,551.29-20,322.38-4,543.58

Finding the Fourth Proportional to 13,551.29, 20,322.38 and 4,543.58

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Solution

The fourth proportional to 13,551.29, 20,322.38 and 4,543.58 is: 6,813.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.29 : 20,322.38 = 4,543.58 : x
  2. Step 2: Convert to fraction form
    13,551.29/20,322.38 = 4,543.58/x
  3. Step 3: Cross multiply
    13,551.29x = 20,322.38 × 4,543.58
  4. Step 4: Simplify right side
    13,551.29x = 92,336,336.60
  5. Step 5: Solve for x
    x = 92,336,336.60/13,551.29
  6. Step 6: Final answer
    x = 6,813.84

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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.