Home / 11,890.12-17,829.66-5,316.34

Finding the Fourth Proportional to 11,890.12, 17,829.66 and 5,316.34

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Solution

The fourth proportional to 11,890.12, 17,829.66 and 5,316.34 is: 7,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.12 : 17,829.66 = 5,316.34 : x
  2. Step 2: Convert to fraction form
    11,890.12/17,829.66 = 5,316.34/x
  3. Step 3: Cross multiply
    11,890.12x = 17,829.66 × 5,316.34
  4. Step 4: Simplify right side
    11,890.12x = 94,788,534.64
  5. Step 5: Solve for x
    x = 94,788,534.64/11,890.12
  6. Step 6: Final answer
    x = 7,972.04

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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.