Home / 13,529.44-18,664.11-8,491.17

Finding the Fourth Proportional to 13,529.44, 18,664.11 and 8,491.17

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Solution

The fourth proportional to 13,529.44, 18,664.11 and 8,491.17 is: 11,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.44 : 18,664.11 = 8,491.17 : x
  2. Step 2: Convert to fraction form
    13,529.44/18,664.11 = 8,491.17/x
  3. Step 3: Cross multiply
    13,529.44x = 18,664.11 × 8,491.17
  4. Step 4: Simplify right side
    13,529.44x = 158,480,130.91
  5. Step 5: Solve for x
    x = 158,480,130.91/13,529.44
  6. Step 6: Final answer
    x = 11,713.73

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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.