Home / 11,190.48-16,785.30-2,870.55

Finding the Fourth Proportional to 11,190.48, 16,785.30 and 2,870.55

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Solution

The fourth proportional to 11,190.48, 16,785.30 and 2,870.55 is: 4,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.48 : 16,785.30 = 2,870.55 : x
  2. Step 2: Convert to fraction form
    11,190.48/16,785.30 = 2,870.55/x
  3. Step 3: Cross multiply
    11,190.48x = 16,785.30 × 2,870.55
  4. Step 4: Simplify right side
    11,190.48x = 48,183,042.92
  5. Step 5: Solve for x
    x = 48,183,042.92/11,190.48
  6. Step 6: Final answer
    x = 4,305.72

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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.