Home / 11,456.36-17,190.39-5,459.21

Finding the Fourth Proportional to 11,456.36, 17,190.39 and 5,459.21

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Solution

The fourth proportional to 11,456.36, 17,190.39 and 5,459.21 is: 8,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.36 : 17,190.39 = 5,459.21 : x
  2. Step 2: Convert to fraction form
    11,456.36/17,190.39 = 5,459.21/x
  3. Step 3: Cross multiply
    11,456.36x = 17,190.39 × 5,459.21
  4. Step 4: Simplify right side
    11,456.36x = 93,845,948.99
  5. Step 5: Solve for x
    x = 93,845,948.99/11,456.36
  6. Step 6: Final answer
    x = 8,191.60

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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.