Home / 18,150.40-27,218.64-7,055.62

Finding the Fourth Proportional to 18,150.40, 27,218.64 and 7,055.62

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Solution

The fourth proportional to 18,150.40, 27,218.64 and 7,055.62 is: 10,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.40 : 27,218.64 = 7,055.62 : x
  2. Step 2: Convert to fraction form
    18,150.40/27,218.64 = 7,055.62/x
  3. Step 3: Cross multiply
    18,150.40x = 27,218.64 × 7,055.62
  4. Step 4: Simplify right side
    18,150.40x = 192,044,380.76
  5. Step 5: Solve for x
    x = 192,044,380.76/18,150.40
  6. Step 6: Final answer
    x = 10,580.72

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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.