Home / 11,709.74-16,159.46-6,404.55

Finding the Fourth Proportional to 11,709.74, 16,159.46 and 6,404.55

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Solution

The fourth proportional to 11,709.74, 16,159.46 and 6,404.55 is: 8,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.74 : 16,159.46 = 6,404.55 : x
  2. Step 2: Convert to fraction form
    11,709.74/16,159.46 = 6,404.55/x
  3. Step 3: Cross multiply
    11,709.74x = 16,159.46 × 6,404.55
  4. Step 4: Simplify right side
    11,709.74x = 103,494,037.52
  5. Step 5: Solve for x
    x = 103,494,037.52/11,709.74
  6. Step 6: Final answer
    x = 8,838.29

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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.