Home / 8,311.08-11,461.59-6,191.82

Finding the Fourth Proportional to 8,311.08, 11,461.59 and 6,191.82

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Solution

The fourth proportional to 8,311.08, 11,461.59 and 6,191.82 is: 8,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.08 : 11,461.59 = 6,191.82 : x
  2. Step 2: Convert to fraction form
    8,311.08/11,461.59 = 6,191.82/x
  3. Step 3: Cross multiply
    8,311.08x = 11,461.59 × 6,191.82
  4. Step 4: Simplify right side
    8,311.08x = 70,968,102.19
  5. Step 5: Solve for x
    x = 70,968,102.19/8,311.08
  6. Step 6: Final answer
    x = 8,538.97

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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.