Home / 11,657.39-16,085.79-6,621.55

Finding the Fourth Proportional to 11,657.39, 16,085.79 and 6,621.55

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Solution

The fourth proportional to 11,657.39, 16,085.79 and 6,621.55 is: 9,136.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657.39 : 16,085.79 = 6,621.55 : x
  2. Step 2: Convert to fraction form
    11,657.39/16,085.79 = 6,621.55/x
  3. Step 3: Cross multiply
    11,657.39x = 16,085.79 × 6,621.55
  4. Step 4: Simplify right side
    11,657.39x = 106,512,822.56
  5. Step 5: Solve for x
    x = 106,512,822.56/11,657.39
  6. Step 6: Final answer
    x = 9,136.94

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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.