Home / 8,219.40-11,345.85-6,234.70

Finding the Fourth Proportional to 8,219.40, 11,345.85 and 6,234.70

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Solution

The fourth proportional to 8,219.40, 11,345.85 and 6,234.70 is: 8,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.40 : 11,345.85 = 6,234.70 : x
  2. Step 2: Convert to fraction form
    8,219.40/11,345.85 = 6,234.70/x
  3. Step 3: Cross multiply
    8,219.40x = 11,345.85 × 6,234.70
  4. Step 4: Simplify right side
    8,219.40x = 70,737,971.00
  5. Step 5: Solve for x
    x = 70,737,971.00/8,219.40
  6. Step 6: Final answer
    x = 8,606.22

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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.