Home / 13,382.70-18,467.63-7,717.68

Finding the Fourth Proportional to 13,382.70, 18,467.63 and 7,717.68

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Solution

The fourth proportional to 13,382.70, 18,467.63 and 7,717.68 is: 10,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.70 : 18,467.63 = 7,717.68 : x
  2. Step 2: Convert to fraction form
    13,382.70/18,467.63 = 7,717.68/x
  3. Step 3: Cross multiply
    13,382.70x = 18,467.63 × 7,717.68
  4. Step 4: Simplify right side
    13,382.70x = 142,527,359.52
  5. Step 5: Solve for x
    x = 142,527,359.52/13,382.70
  6. Step 6: Final answer
    x = 10,650.12

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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.