Home / 14,613.76-20,150.40-11,779.84

Finding the Fourth Proportional to 14,613.76, 20,150.40 and 11,779.84

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Solution

The fourth proportional to 14,613.76, 20,150.40 and 11,779.84 is: 16,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.76 : 20,150.40 = 11,779.84 : x
  2. Step 2: Convert to fraction form
    14,613.76/20,150.40 = 11,779.84/x
  3. Step 3: Cross multiply
    14,613.76x = 20,150.40 × 11,779.84
  4. Step 4: Simplify right side
    14,613.76x = 237,368,487.94
  5. Step 5: Solve for x
    x = 237,368,487.94/14,613.76
  6. Step 6: Final answer
    x = 16,242.81

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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.