Home / 12,307.12-16,997.96-8,964.88

Finding the Fourth Proportional to 12,307.12, 16,997.96 and 8,964.88

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Solution

The fourth proportional to 12,307.12, 16,997.96 and 8,964.88 is: 12,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.12 : 16,997.96 = 8,964.88 : x
  2. Step 2: Convert to fraction form
    12,307.12/16,997.96 = 8,964.88/x
  3. Step 3: Cross multiply
    12,307.12x = 16,997.96 × 8,964.88
  4. Step 4: Simplify right side
    12,307.12x = 152,384,671.64
  5. Step 5: Solve for x
    x = 152,384,671.64/12,307.12
  6. Step 6: Final answer
    x = 12,381.83

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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.