Home / 14,895.12-20,555.31-8,180.88

Finding the Fourth Proportional to 14,895.12, 20,555.31 and 8,180.88

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Solution

The fourth proportional to 14,895.12, 20,555.31 and 8,180.88 is: 11,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,895.12 : 20,555.31 = 8,180.88 : x
  2. Step 2: Convert to fraction form
    14,895.12/20,555.31 = 8,180.88/x
  3. Step 3: Cross multiply
    14,895.12x = 20,555.31 × 8,180.88
  4. Step 4: Simplify right side
    14,895.12x = 168,160,524.47
  5. Step 5: Solve for x
    x = 168,160,524.47/14,895.12
  6. Step 6: Final answer
    x = 11,289.64

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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.