Home / 11,815.42-16,305.15-6,710.90

Finding the Fourth Proportional to 11,815.42, 16,305.15 and 6,710.90

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Solution

The fourth proportional to 11,815.42, 16,305.15 and 6,710.90 is: 9,260.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.42 : 16,305.15 = 6,710.90 : x
  2. Step 2: Convert to fraction form
    11,815.42/16,305.15 = 6,710.90/x
  3. Step 3: Cross multiply
    11,815.42x = 16,305.15 × 6,710.90
  4. Step 4: Simplify right side
    11,815.42x = 109,422,228.74
  5. Step 5: Solve for x
    x = 109,422,228.74/11,815.42
  6. Step 6: Final answer
    x = 9,260.97

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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.