Home / 14,992.80-20,688.60-8,704.56

Finding the Fourth Proportional to 14,992.80, 20,688.60 and 8,704.56

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Solution

The fourth proportional to 14,992.80, 20,688.60 and 8,704.56 is: 12,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.80 : 20,688.60 = 8,704.56 : x
  2. Step 2: Convert to fraction form
    14,992.80/20,688.60 = 8,704.56/x
  3. Step 3: Cross multiply
    14,992.80x = 20,688.60 × 8,704.56
  4. Step 4: Simplify right side
    14,992.80x = 180,085,160.02
  5. Step 5: Solve for x
    x = 180,085,160.02/14,992.80
  6. Step 6: Final answer
    x = 12,011.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.