Home / 12,215.34-16,857.18-6,910.05

Finding the Fourth Proportional to 12,215.34, 16,857.18 and 6,910.05

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Solution

The fourth proportional to 12,215.34, 16,857.18 and 6,910.05 is: 9,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.34 : 16,857.18 = 6,910.05 : x
  2. Step 2: Convert to fraction form
    12,215.34/16,857.18 = 6,910.05/x
  3. Step 3: Cross multiply
    12,215.34x = 16,857.18 × 6,910.05
  4. Step 4: Simplify right side
    12,215.34x = 116,483,956.66
  5. Step 5: Solve for x
    x = 116,483,956.66/12,215.34
  6. Step 6: Final answer
    x = 9,535.88

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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.