Home / 13,975.40-20,958.64-4,613.68

Finding the Fourth Proportional to 13,975.40, 20,958.64 and 4,613.68

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Solution

The fourth proportional to 13,975.40, 20,958.64 and 4,613.68 is: 6,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.40 : 20,958.64 = 4,613.68 : x
  2. Step 2: Convert to fraction form
    13,975.40/20,958.64 = 4,613.68/x
  3. Step 3: Cross multiply
    13,975.40x = 20,958.64 × 4,613.68
  4. Step 4: Simplify right side
    13,975.40x = 96,696,458.20
  5. Step 5: Solve for x
    x = 96,696,458.20/13,975.40
  6. Step 6: Final answer
    x = 6,919.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.