Home / 8,270.13-11,412.45-4,912.86

Finding the Fourth Proportional to 8,270.13, 11,412.45 and 4,912.86

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Solution

The fourth proportional to 8,270.13, 11,412.45 and 4,912.86 is: 6,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.13 : 11,412.45 = 4,912.86 : x
  2. Step 2: Convert to fraction form
    8,270.13/11,412.45 = 4,912.86/x
  3. Step 3: Cross multiply
    8,270.13x = 11,412.45 × 4,912.86
  4. Step 4: Simplify right side
    8,270.13x = 56,067,769.11
  5. Step 5: Solve for x
    x = 56,067,769.11/8,270.13
  6. Step 6: Final answer
    x = 6,779.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.