Home / 8,328.89-11,491.98-4,972.79

Finding the Fourth Proportional to 8,328.89, 11,491.98 and 4,972.79

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Solution

The fourth proportional to 8,328.89, 11,491.98 and 4,972.79 is: 6,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.89 : 11,491.98 = 4,972.79 : x
  2. Step 2: Convert to fraction form
    8,328.89/11,491.98 = 4,972.79/x
  3. Step 3: Cross multiply
    8,328.89x = 11,491.98 × 4,972.79
  4. Step 4: Simplify right side
    8,328.89x = 57,147,213.31
  5. Step 5: Solve for x
    x = 57,147,213.31/8,328.89
  6. Step 6: Final answer
    x = 6,861.32

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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.