Home / 13,685.88-20,524.50-8,684.76

Finding the Fourth Proportional to 13,685.88, 20,524.50 and 8,684.76

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Solution

The fourth proportional to 13,685.88, 20,524.50 and 8,684.76 is: 13,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.88 : 20,524.50 = 8,684.76 : x
  2. Step 2: Convert to fraction form
    13,685.88/20,524.50 = 8,684.76/x
  3. Step 3: Cross multiply
    13,685.88x = 20,524.50 × 8,684.76
  4. Step 4: Simplify right side
    13,685.88x = 178,250,356.62
  5. Step 5: Solve for x
    x = 178,250,356.62/13,685.88
  6. Step 6: Final answer
    x = 13,024.40

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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.