Home / 12,579.10-17,364.44-8,491.67

Finding the Fourth Proportional to 12,579.10, 17,364.44 and 8,491.67

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Solution

The fourth proportional to 12,579.10, 17,364.44 and 8,491.67 is: 11,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.10 : 17,364.44 = 8,491.67 : x
  2. Step 2: Convert to fraction form
    12,579.10/17,364.44 = 8,491.67/x
  3. Step 3: Cross multiply
    12,579.10x = 17,364.44 × 8,491.67
  4. Step 4: Simplify right side
    12,579.10x = 147,453,093.74
  5. Step 5: Solve for x
    x = 147,453,093.74/12,579.10
  6. Step 6: Final answer
    x = 11,722.07

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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.