Home / 13,558.53-20,338.52-4,205.01

Finding the Fourth Proportional to 13,558.53, 20,338.52 and 4,205.01

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Solution

The fourth proportional to 13,558.53, 20,338.52 and 4,205.01 is: 6,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.53 : 20,338.52 = 4,205.01 : x
  2. Step 2: Convert to fraction form
    13,558.53/20,338.52 = 4,205.01/x
  3. Step 3: Cross multiply
    13,558.53x = 20,338.52 × 4,205.01
  4. Step 4: Simplify right side
    13,558.53x = 85,523,658.96
  5. Step 5: Solve for x
    x = 85,523,658.96/13,558.53
  6. Step 6: Final answer
    x = 6,307.74

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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.