Home / 14,940.09-20,615.04-8,651.25

Finding the Fourth Proportional to 14,940.09, 20,615.04 and 8,651.25

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Solution

The fourth proportional to 14,940.09, 20,615.04 and 8,651.25 is: 11,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.09 : 20,615.04 = 8,651.25 : x
  2. Step 2: Convert to fraction form
    14,940.09/20,615.04 = 8,651.25/x
  3. Step 3: Cross multiply
    14,940.09x = 20,615.04 × 8,651.25
  4. Step 4: Simplify right side
    14,940.09x = 178,345,864.80
  5. Step 5: Solve for x
    x = 178,345,864.80/14,940.09
  6. Step 6: Final answer
    x = 11,937.40

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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.