Home / 10,421.37-15,633.68-3,494.25

Finding the Fourth Proportional to 10,421.37, 15,633.68 and 3,494.25

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Solution

The fourth proportional to 10,421.37, 15,633.68 and 3,494.25 is: 5,241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.37 : 15,633.68 = 3,494.25 : x
  2. Step 2: Convert to fraction form
    10,421.37/15,633.68 = 3,494.25/x
  3. Step 3: Cross multiply
    10,421.37x = 15,633.68 × 3,494.25
  4. Step 4: Simplify right side
    10,421.37x = 54,627,986.34
  5. Step 5: Solve for x
    x = 54,627,986.34/10,421.37
  6. Step 6: Final answer
    x = 5,241.92

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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.