Home / 11,174.68-15,421.44-6,139.36

Finding the Fourth Proportional to 11,174.68, 15,421.44 and 6,139.36

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Solution

The fourth proportional to 11,174.68, 15,421.44 and 6,139.36 is: 8,472.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.68 : 15,421.44 = 6,139.36 : x
  2. Step 2: Convert to fraction form
    11,174.68/15,421.44 = 6,139.36/x
  3. Step 3: Cross multiply
    11,174.68x = 15,421.44 × 6,139.36
  4. Step 4: Simplify right side
    11,174.68x = 94,677,771.88
  5. Step 5: Solve for x
    x = 94,677,771.88/11,174.68
  6. Step 6: Final answer
    x = 8,472.53

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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.