Home / 12,191.46-18,165.80-10,882.86

Finding the Fourth Proportional to 12,191.46, 18,165.80 and 10,882.86

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Solution

The fourth proportional to 12,191.46, 18,165.80 and 10,882.86 is: 16,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.46 : 18,165.80 = 10,882.86 : x
  2. Step 2: Convert to fraction form
    12,191.46/18,165.80 = 10,882.86/x
  3. Step 3: Cross multiply
    12,191.46x = 18,165.80 × 10,882.86
  4. Step 4: Simplify right side
    12,191.46x = 197,695,803.77
  5. Step 5: Solve for x
    x = 197,695,803.77/12,191.46
  6. Step 6: Final answer
    x = 16,215.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.