Home / 13,623.08-20,460.54-8,465

Finding the Fourth Proportional to 13,623.08, 20,460.54 and 8,465

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Solution

The fourth proportional to 13,623.08, 20,460.54 and 8,465 is: 12,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.08 : 20,460.54 = 8,465 : x
  2. Step 2: Convert to fraction form
    13,623.08/20,460.54 = 8,465/x
  3. Step 3: Cross multiply
    13,623.08x = 20,460.54 × 8,465
  4. Step 4: Simplify right side
    13,623.08x = 173,198,471.10
  5. Step 5: Solve for x
    x = 173,198,471.10/13,623.08
  6. Step 6: Final answer
    x = 12,713.61

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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.