Home / 14,986.43-20,681.77-8,180.85

Finding the Fourth Proportional to 14,986.43, 20,681.77 and 8,180.85

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Solution

The fourth proportional to 14,986.43, 20,681.77 and 8,180.85 is: 11,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.43 : 20,681.77 = 8,180.85 : x
  2. Step 2: Convert to fraction form
    14,986.43/20,681.77 = 8,180.85/x
  3. Step 3: Cross multiply
    14,986.43x = 20,681.77 × 8,180.85
  4. Step 4: Simplify right side
    14,986.43x = 169,194,437.65
  5. Step 5: Solve for x
    x = 169,194,437.65/14,986.43
  6. Step 6: Final answer
    x = 11,289.85

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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.