Home / 14,645.50-20,212.38-9,613.78

Finding the Fourth Proportional to 14,645.50, 20,212.38 and 9,613.78

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Solution

The fourth proportional to 14,645.50, 20,212.38 and 9,613.78 is: 13,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.50 : 20,212.38 = 9,613.78 : x
  2. Step 2: Convert to fraction form
    14,645.50/20,212.38 = 9,613.78/x
  3. Step 3: Cross multiply
    14,645.50x = 20,212.38 × 9,613.78
  4. Step 4: Simplify right side
    14,645.50x = 194,317,374.60
  5. Step 5: Solve for x
    x = 194,317,374.60/14,645.50
  6. Step 6: Final answer
    x = 13,268.06

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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.