Home / 10,511.72-15,769.23-3,116.91

Finding the Fourth Proportional to 10,511.72, 15,769.23 and 3,116.91

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Solution

The fourth proportional to 10,511.72, 15,769.23 and 3,116.91 is: 4,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.72 : 15,769.23 = 3,116.91 : x
  2. Step 2: Convert to fraction form
    10,511.72/15,769.23 = 3,116.91/x
  3. Step 3: Cross multiply
    10,511.72x = 15,769.23 × 3,116.91
  4. Step 4: Simplify right side
    10,511.72x = 49,151,255.09
  5. Step 5: Solve for x
    x = 49,151,255.09/10,511.72
  6. Step 6: Final answer
    x = 4,675.85

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1.5x scale

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.