Home / 11,710.46-16,159.55-6,405.09

Finding the Fourth Proportional to 11,710.46, 16,159.55 and 6,405.09

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Solution

The fourth proportional to 11,710.46, 16,159.55 and 6,405.09 is: 8,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.46 : 16,159.55 = 6,405.09 : x
  2. Step 2: Convert to fraction form
    11,710.46/16,159.55 = 6,405.09/x
  3. Step 3: Cross multiply
    11,710.46x = 16,159.55 × 6,405.09
  4. Step 4: Simplify right side
    11,710.46x = 103,503,340.08
  5. Step 5: Solve for x
    x = 103,503,340.08/11,710.46
  6. Step 6: Final answer
    x = 8,838.54

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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.