Home / 12,150.54-18,218.14-5,126.92

Finding the Fourth Proportional to 12,150.54, 18,218.14 and 5,126.92

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Solution

The fourth proportional to 12,150.54, 18,218.14 and 5,126.92 is: 7,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.54 : 18,218.14 = 5,126.92 : x
  2. Step 2: Convert to fraction form
    12,150.54/18,218.14 = 5,126.92/x
  3. Step 3: Cross multiply
    12,150.54x = 18,218.14 × 5,126.92
  4. Step 4: Simplify right side
    12,150.54x = 93,402,887.97
  5. Step 5: Solve for x
    x = 93,402,887.97/12,150.54
  6. Step 6: Final answer
    x = 7,687.14

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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.