Home / 18,783.32-28,174.95-5,635.71

Finding the Fourth Proportional to 18,783.32, 28,174.95 and 5,635.71

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Solution

The fourth proportional to 18,783.32, 28,174.95 and 5,635.71 is: 8,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.32 : 28,174.95 = 5,635.71 : x
  2. Step 2: Convert to fraction form
    18,783.32/28,174.95 = 5,635.71/x
  3. Step 3: Cross multiply
    18,783.32x = 28,174.95 × 5,635.71
  4. Step 4: Simplify right side
    18,783.32x = 158,785,847.46
  5. Step 5: Solve for x
    x = 158,785,847.46/18,783.32
  6. Step 6: Final answer
    x = 8,453.56

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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.