Home / 13,905.68-20,837.58-8,352.92

Finding the Fourth Proportional to 13,905.68, 20,837.58 and 8,352.92

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Solution

The fourth proportional to 13,905.68, 20,837.58 and 8,352.92 is: 12,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.68 : 20,837.58 = 8,352.92 : x
  2. Step 2: Convert to fraction form
    13,905.68/20,837.58 = 8,352.92/x
  3. Step 3: Cross multiply
    13,905.68x = 20,837.58 × 8,352.92
  4. Step 4: Simplify right side
    13,905.68x = 174,054,638.73
  5. Step 5: Solve for x
    x = 174,054,638.73/13,905.68
  6. Step 6: Final answer
    x = 12,516.80

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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.