Home / 10,715.10-16,077.24-4,145.91

Finding the Fourth Proportional to 10,715.10, 16,077.24 and 4,145.91

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Solution

The fourth proportional to 10,715.10, 16,077.24 and 4,145.91 is: 6,220.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.10 : 16,077.24 = 4,145.91 : x
  2. Step 2: Convert to fraction form
    10,715.10/16,077.24 = 4,145.91/x
  3. Step 3: Cross multiply
    10,715.10x = 16,077.24 × 4,145.91
  4. Step 4: Simplify right side
    10,715.10x = 66,654,790.09
  5. Step 5: Solve for x
    x = 66,654,790.09/10,715.10
  6. Step 6: Final answer
    x = 6,220.64

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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.