Home / 10,855.91-14,981.21-6,141.11

Finding the Fourth Proportional to 10,855.91, 14,981.21 and 6,141.11

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Solution

The fourth proportional to 10,855.91, 14,981.21 and 6,141.11 is: 8,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.91 : 14,981.21 = 6,141.11 : x
  2. Step 2: Convert to fraction form
    10,855.91/14,981.21 = 6,141.11/x
  3. Step 3: Cross multiply
    10,855.91x = 14,981.21 × 6,141.11
  4. Step 4: Simplify right side
    10,855.91x = 92,001,152.93
  5. Step 5: Solve for x
    x = 92,001,152.93/10,855.91
  6. Step 6: Final answer
    x = 8,474.76

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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.