Home / 11,428.23-17,140.26-5,186.76

Finding the Fourth Proportional to 11,428.23, 17,140.26 and 5,186.76

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Solution

The fourth proportional to 11,428.23, 17,140.26 and 5,186.76 is: 7,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.23 : 17,140.26 = 5,186.76 : x
  2. Step 2: Convert to fraction form
    11,428.23/17,140.26 = 5,186.76/x
  3. Step 3: Cross multiply
    11,428.23x = 17,140.26 × 5,186.76
  4. Step 4: Simplify right side
    11,428.23x = 88,902,414.96
  5. Step 5: Solve for x
    x = 88,902,414.96/11,428.23
  6. Step 6: Final answer
    x = 7,779.19

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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.