Home / 18,360.34-27,540.78-5,212.74

Finding the Fourth Proportional to 18,360.34, 27,540.78 and 5,212.74

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Solution

The fourth proportional to 18,360.34, 27,540.78 and 5,212.74 is: 7,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.34 : 27,540.78 = 5,212.74 : x
  2. Step 2: Convert to fraction form
    18,360.34/27,540.78 = 5,212.74/x
  3. Step 3: Cross multiply
    18,360.34x = 27,540.78 × 5,212.74
  4. Step 4: Simplify right side
    18,360.34x = 143,562,925.54
  5. Step 5: Solve for x
    x = 143,562,925.54/18,360.34
  6. Step 6: Final answer
    x = 7,819.19

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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.