Home / 19,987.96-29,918.46-11,196.04

Finding the Fourth Proportional to 19,987.96, 29,918.46 and 11,196.04

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Solution

The fourth proportional to 19,987.96, 29,918.46 and 11,196.04 is: 16,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.96 : 29,918.46 = 11,196.04 : x
  2. Step 2: Convert to fraction form
    19,987.96/29,918.46 = 11,196.04/x
  3. Step 3: Cross multiply
    19,987.96x = 29,918.46 × 11,196.04
  4. Step 4: Simplify right side
    19,987.96x = 334,968,274.90
  5. Step 5: Solve for x
    x = 334,968,274.90/19,987.96
  6. Step 6: Final answer
    x = 16,758.50

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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.