Home / 11,900.42-16,422.30-6,864.65

Finding the Fourth Proportional to 11,900.42, 16,422.30 and 6,864.65

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Solution

The fourth proportional to 11,900.42, 16,422.30 and 6,864.65 is: 9,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.42 : 16,422.30 = 6,864.65 : x
  2. Step 2: Convert to fraction form
    11,900.42/16,422.30 = 6,864.65/x
  3. Step 3: Cross multiply
    11,900.42x = 16,422.30 × 6,864.65
  4. Step 4: Simplify right side
    11,900.42x = 112,733,341.70
  5. Step 5: Solve for x
    x = 112,733,341.70/11,900.42
  6. Step 6: Final answer
    x = 9,473.06

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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.