Home / 14,700.30-20,286.14-8,326.80

Finding the Fourth Proportional to 14,700.30, 20,286.14 and 8,326.80

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Solution

The fourth proportional to 14,700.30, 20,286.14 and 8,326.80 is: 11,490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.30 : 20,286.14 = 8,326.80 : x
  2. Step 2: Convert to fraction form
    14,700.30/20,286.14 = 8,326.80/x
  3. Step 3: Cross multiply
    14,700.30x = 20,286.14 × 8,326.80
  4. Step 4: Simplify right side
    14,700.30x = 168,918,630.55
  5. Step 5: Solve for x
    x = 168,918,630.55/14,700.30
  6. Step 6: Final answer
    x = 11,490.83

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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.