Home / 12,889.04-19,327.26-5,491.76

Finding the Fourth Proportional to 12,889.04, 19,327.26 and 5,491.76

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Solution

The fourth proportional to 12,889.04, 19,327.26 and 5,491.76 is: 8,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.04 : 19,327.26 = 5,491.76 : x
  2. Step 2: Convert to fraction form
    12,889.04/19,327.26 = 5,491.76/x
  3. Step 3: Cross multiply
    12,889.04x = 19,327.26 × 5,491.76
  4. Step 4: Simplify right side
    12,889.04x = 106,140,673.38
  5. Step 5: Solve for x
    x = 106,140,673.38/12,889.04
  6. Step 6: Final answer
    x = 8,234.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.