Home / 19,199.04-28,742.88-11,781.12

Finding the Fourth Proportional to 19,199.04, 28,742.88 and 11,781.12

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Solution

The fourth proportional to 19,199.04, 28,742.88 and 11,781.12 is: 17,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.04 : 28,742.88 = 11,781.12 : x
  2. Step 2: Convert to fraction form
    19,199.04/28,742.88 = 11,781.12/x
  3. Step 3: Cross multiply
    19,199.04x = 28,742.88 × 11,781.12
  4. Step 4: Simplify right side
    19,199.04x = 338,623,318.43
  5. Step 5: Solve for x
    x = 338,623,318.43/19,199.04
  6. Step 6: Final answer
    x = 17,637.51

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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.