Home / 14,607.14-20,161.98-8,640.88

Finding the Fourth Proportional to 14,607.14, 20,161.98 and 8,640.88

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Solution

The fourth proportional to 14,607.14, 20,161.98 and 8,640.88 is: 11,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.14 : 20,161.98 = 8,640.88 : x
  2. Step 2: Convert to fraction form
    14,607.14/20,161.98 = 8,640.88/x
  3. Step 3: Cross multiply
    14,607.14x = 20,161.98 × 8,640.88
  4. Step 4: Simplify right side
    14,607.14x = 174,217,220.94
  5. Step 5: Solve for x
    x = 174,217,220.94/14,607.14
  6. Step 6: Final answer
    x = 11,926.86

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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.