Home / 10,522.91-15,784.41-3,127.44

Finding the Fourth Proportional to 10,522.91, 15,784.41 and 3,127.44

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Solution

The fourth proportional to 10,522.91, 15,784.41 and 3,127.44 is: 4,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.91 : 15,784.41 = 3,127.44 : x
  2. Step 2: Convert to fraction form
    10,522.91/15,784.41 = 3,127.44/x
  3. Step 3: Cross multiply
    10,522.91x = 15,784.41 × 3,127.44
  4. Step 4: Simplify right side
    10,522.91x = 49,364,795.21
  5. Step 5: Solve for x
    x = 49,364,795.21/10,522.91
  6. Step 6: Final answer
    x = 4,691.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.