Home / 11,815.86-16,305.27-6,510.54

Finding the Fourth Proportional to 11,815.86, 16,305.27 and 6,510.54

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Solution

The fourth proportional to 11,815.86, 16,305.27 and 6,510.54 is: 8,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.86 : 16,305.27 = 6,510.54 : x
  2. Step 2: Convert to fraction form
    11,815.86/16,305.27 = 6,510.54/x
  3. Step 3: Cross multiply
    11,815.86x = 16,305.27 × 6,510.54
  4. Step 4: Simplify right side
    11,815.86x = 106,156,112.55
  5. Step 5: Solve for x
    x = 106,156,112.55/11,815.86
  6. Step 6: Final answer
    x = 8,984.21

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1.5x scale

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.