Home / 10,716.55-16,085.20-5,173.79

Finding the Fourth Proportional to 10,716.55, 16,085.20 and 5,173.79

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Solution

The fourth proportional to 10,716.55, 16,085.20 and 5,173.79 is: 7,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,716.55 : 16,085.20 = 5,173.79 : x
  2. Step 2: Convert to fraction form
    10,716.55/16,085.20 = 5,173.79/x
  3. Step 3: Cross multiply
    10,716.55x = 16,085.20 × 5,173.79
  4. Step 4: Simplify right side
    10,716.55x = 83,221,412.81
  5. Step 5: Solve for x
    x = 83,221,412.81/10,716.55
  6. Step 6: Final answer
    x = 7,765.69

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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.