Home / 13,750.66-20,613.54-4,979.38

Finding the Fourth Proportional to 13,750.66, 20,613.54 and 4,979.38

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Solution

The fourth proportional to 13,750.66, 20,613.54 and 4,979.38 is: 7,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.66 : 20,613.54 = 4,979.38 : x
  2. Step 2: Convert to fraction form
    13,750.66/20,613.54 = 4,979.38/x
  3. Step 3: Cross multiply
    13,750.66x = 20,613.54 × 4,979.38
  4. Step 4: Simplify right side
    13,750.66x = 102,642,648.81
  5. Step 5: Solve for x
    x = 102,642,648.81/13,750.66
  6. Step 6: Final answer
    x = 7,464.56

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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.