Home / 11,946.42-16,485.59-6,640.85

Finding the Fourth Proportional to 11,946.42, 16,485.59 and 6,640.85

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Solution

The fourth proportional to 11,946.42, 16,485.59 and 6,640.85 is: 9,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.42 : 16,485.59 = 6,640.85 : x
  2. Step 2: Convert to fraction form
    11,946.42/16,485.59 = 6,640.85/x
  3. Step 3: Cross multiply
    11,946.42x = 16,485.59 × 6,640.85
  4. Step 4: Simplify right side
    11,946.42x = 109,478,388.17
  5. Step 5: Solve for x
    x = 109,478,388.17/11,946.42
  6. Step 6: Final answer
    x = 9,164.12

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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.