Home / 15,519.62-21,416.14-8,713.14

Finding the Fourth Proportional to 15,519.62, 21,416.14 and 8,713.14

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Solution

The fourth proportional to 15,519.62, 21,416.14 and 8,713.14 is: 12,023.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.62 : 21,416.14 = 8,713.14 : x
  2. Step 2: Convert to fraction form
    15,519.62/21,416.14 = 8,713.14/x
  3. Step 3: Cross multiply
    15,519.62x = 21,416.14 × 8,713.14
  4. Step 4: Simplify right side
    15,519.62x = 186,601,826.08
  5. Step 5: Solve for x
    x = 186,601,826.08/15,519.62
  6. Step 6: Final answer
    x = 12,023.61

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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.