Home / 18,320.76-27,460.92-11,988.03

Finding the Fourth Proportional to 18,320.76, 27,460.92 and 11,988.03

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Solution

The fourth proportional to 18,320.76, 27,460.92 and 11,988.03 is: 17,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.76 : 27,460.92 = 11,988.03 : x
  2. Step 2: Convert to fraction form
    18,320.76/27,460.92 = 11,988.03/x
  3. Step 3: Cross multiply
    18,320.76x = 27,460.92 × 11,988.03
  4. Step 4: Simplify right side
    18,320.76x = 329,202,332.79
  5. Step 5: Solve for x
    x = 329,202,332.79/18,320.76
  6. Step 6: Final answer
    x = 17,968.81

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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.