Home / 8,214.84-11,337.76-5,231.98

Finding the Fourth Proportional to 8,214.84, 11,337.76 and 5,231.98

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Solution

The fourth proportional to 8,214.84, 11,337.76 and 5,231.98 is: 7,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.84 : 11,337.76 = 5,231.98 : x
  2. Step 2: Convert to fraction form
    8,214.84/11,337.76 = 5,231.98/x
  3. Step 3: Cross multiply
    8,214.84x = 11,337.76 × 5,231.98
  4. Step 4: Simplify right side
    8,214.84x = 59,318,933.56
  5. Step 5: Solve for x
    x = 59,318,933.56/8,214.84
  6. Step 6: Final answer
    x = 7,220.95

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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.