Home / 12,966.96-17,855.16-10,867.44

Finding the Fourth Proportional to 12,966.96, 17,855.16 and 10,867.44

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Solution

The fourth proportional to 12,966.96, 17,855.16 and 10,867.44 is: 14,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.96 : 17,855.16 = 10,867.44 : x
  2. Step 2: Convert to fraction form
    12,966.96/17,855.16 = 10,867.44/x
  3. Step 3: Cross multiply
    12,966.96x = 17,855.16 × 10,867.44
  4. Step 4: Simplify right side
    12,966.96x = 194,039,879.99
  5. Step 5: Solve for x
    x = 194,039,879.99/12,966.96
  6. Step 6: Final answer
    x = 14,964.18

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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.