Home / 11,174.76-15,421.42-6,139.29

Finding the Fourth Proportional to 11,174.76, 15,421.42 and 6,139.29

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Solution

The fourth proportional to 11,174.76, 15,421.42 and 6,139.29 is: 8,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.76 : 15,421.42 = 6,139.29 : x
  2. Step 2: Convert to fraction form
    11,174.76/15,421.42 = 6,139.29/x
  3. Step 3: Cross multiply
    11,174.76x = 15,421.42 × 6,139.29
  4. Step 4: Simplify right side
    11,174.76x = 94,676,531.04
  5. Step 5: Solve for x
    x = 94,676,531.04/11,174.76
  6. Step 6: Final answer
    x = 8,472.36

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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.