Home / 19,615.68-27,066.72-11,229.12

Finding the Fourth Proportional to 19,615.68, 27,066.72 and 11,229.12

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Solution

The fourth proportional to 19,615.68, 27,066.72 and 11,229.12 is: 15,494.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.68 : 27,066.72 = 11,229.12 : x
  2. Step 2: Convert to fraction form
    19,615.68/27,066.72 = 11,229.12/x
  3. Step 3: Cross multiply
    19,615.68x = 27,066.72 × 11,229.12
  4. Step 4: Simplify right side
    19,615.68x = 303,935,446.89
  5. Step 5: Solve for x
    x = 303,935,446.89/19,615.68
  6. Step 6: Final answer
    x = 15,494.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.