Home / 8,474.06-11,705.36-6,508.90

Finding the Fourth Proportional to 8,474.06, 11,705.36 and 6,508.90

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Solution

The fourth proportional to 8,474.06, 11,705.36 and 6,508.90 is: 8,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.06 : 11,705.36 = 6,508.90 : x
  2. Step 2: Convert to fraction form
    8,474.06/11,705.36 = 6,508.90/x
  3. Step 3: Cross multiply
    8,474.06x = 11,705.36 × 6,508.90
  4. Step 4: Simplify right side
    8,474.06x = 76,189,017.70
  5. Step 5: Solve for x
    x = 76,189,017.70/8,474.06
  6. Step 6: Final answer
    x = 8,990.85

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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.