Home / 13,618.92-20,416.22-5,823.72

Finding the Fourth Proportional to 13,618.92, 20,416.22 and 5,823.72

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Solution

The fourth proportional to 13,618.92, 20,416.22 and 5,823.72 is: 8,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.92 : 20,416.22 = 5,823.72 : x
  2. Step 2: Convert to fraction form
    13,618.92/20,416.22 = 5,823.72/x
  3. Step 3: Cross multiply
    13,618.92x = 20,416.22 × 5,823.72
  4. Step 4: Simplify right side
    13,618.92x = 118,898,348.74
  5. Step 5: Solve for x
    x = 118,898,348.74/13,618.92
  6. Step 6: Final answer
    x = 8,730.38

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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.