Home / 14,956.80-20,638.98-8,668.50

Finding the Fourth Proportional to 14,956.80, 20,638.98 and 8,668.50

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Solution

The fourth proportional to 14,956.80, 20,638.98 and 8,668.50 is: 11,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.80 : 20,638.98 = 8,668.50 : x
  2. Step 2: Convert to fraction form
    14,956.80/20,638.98 = 8,668.50/x
  3. Step 3: Cross multiply
    14,956.80x = 20,638.98 × 8,668.50
  4. Step 4: Simplify right side
    14,956.80x = 178,908,998.13
  5. Step 5: Solve for x
    x = 178,908,998.13/14,956.80
  6. Step 6: Final answer
    x = 11,961.72

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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.