Home / 14,940.80-20,613.76-8,651.96

Finding the Fourth Proportional to 14,940.80, 20,613.76 and 8,651.96

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Solution

The fourth proportional to 14,940.80, 20,613.76 and 8,651.96 is: 11,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.80 : 20,613.76 = 8,651.96 : x
  2. Step 2: Convert to fraction form
    14,940.80/20,613.76 = 8,651.96/x
  3. Step 3: Cross multiply
    14,940.80x = 20,613.76 × 8,651.96
  4. Step 4: Simplify right side
    14,940.80x = 178,349,426.97
  5. Step 5: Solve for x
    x = 178,349,426.97/14,940.80
  6. Step 6: Final answer
    x = 11,937.07

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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.