Home / 11,972.04-17,968.99-9,189.69

Finding the Fourth Proportional to 11,972.04, 17,968.99 and 9,189.69

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Solution

The fourth proportional to 11,972.04, 17,968.99 and 9,189.69 is: 13,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.04 : 17,968.99 = 9,189.69 : x
  2. Step 2: Convert to fraction form
    11,972.04/17,968.99 = 9,189.69/x
  3. Step 3: Cross multiply
    11,972.04x = 17,968.99 × 9,189.69
  4. Step 4: Simplify right side
    11,972.04x = 165,129,374.59
  5. Step 5: Solve for x
    x = 165,129,374.59/11,972.04
  6. Step 6: Final answer
    x = 13,792.92

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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.