Home / 8,327.90-11,491.11-4,972.07

Finding the Fourth Proportional to 8,327.90, 11,491.11 and 4,972.07

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Solution

The fourth proportional to 8,327.90, 11,491.11 and 4,972.07 is: 6,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.90 : 11,491.11 = 4,972.07 : x
  2. Step 2: Convert to fraction form
    8,327.90/11,491.11 = 4,972.07/x
  3. Step 3: Cross multiply
    8,327.90x = 11,491.11 × 4,972.07
  4. Step 4: Simplify right side
    8,327.90x = 57,134,545.84
  5. Step 5: Solve for x
    x = 57,134,545.84/8,327.90
  6. Step 6: Final answer
    x = 6,860.62

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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.