Home / 13,394.08-20,102.46-8,472.52

Finding the Fourth Proportional to 13,394.08, 20,102.46 and 8,472.52

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Solution

The fourth proportional to 13,394.08, 20,102.46 and 8,472.52 is: 12,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.08 : 20,102.46 = 8,472.52 : x
  2. Step 2: Convert to fraction form
    13,394.08/20,102.46 = 8,472.52/x
  3. Step 3: Cross multiply
    13,394.08x = 20,102.46 × 8,472.52
  4. Step 4: Simplify right side
    13,394.08x = 170,318,494.40
  5. Step 5: Solve for x
    x = 170,318,494.40/13,394.08
  6. Step 6: Final answer
    x = 12,715.95

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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.