Home / 19,697.13-27,186.71-11,318.49

Finding the Fourth Proportional to 19,697.13, 27,186.71 and 11,318.49

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Solution

The fourth proportional to 19,697.13, 27,186.71 and 11,318.49 is: 15,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.13 : 27,186.71 = 11,318.49 : x
  2. Step 2: Convert to fraction form
    19,697.13/27,186.71 = 11,318.49/x
  3. Step 3: Cross multiply
    19,697.13x = 27,186.71 × 11,318.49
  4. Step 4: Simplify right side
    19,697.13x = 307,712,448.68
  5. Step 5: Solve for x
    x = 307,712,448.68/19,697.13
  6. Step 6: Final answer
    x = 15,622.20

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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.