Home / 10,511.99-15,771.02-3,116.61

Finding the Fourth Proportional to 10,511.99, 15,771.02 and 3,116.61

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Solution

The fourth proportional to 10,511.99, 15,771.02 and 3,116.61 is: 4,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.99 : 15,771.02 = 3,116.61 : x
  2. Step 2: Convert to fraction form
    10,511.99/15,771.02 = 3,116.61/x
  3. Step 3: Cross multiply
    10,511.99x = 15,771.02 × 3,116.61
  4. Step 4: Simplify right side
    10,511.99x = 49,152,103.06
  5. Step 5: Solve for x
    x = 49,152,103.06/10,511.99
  6. Step 6: Final answer
    x = 4,675.82

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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.