Home / 11,946.58-16,485.85-6,641.28

Finding the Fourth Proportional to 11,946.58, 16,485.85 and 6,641.28

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Solution

The fourth proportional to 11,946.58, 16,485.85 and 6,641.28 is: 9,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.58 : 16,485.85 = 6,641.28 : x
  2. Step 2: Convert to fraction form
    11,946.58/16,485.85 = 6,641.28/x
  3. Step 3: Cross multiply
    11,946.58x = 16,485.85 × 6,641.28
  4. Step 4: Simplify right side
    11,946.58x = 109,487,129.28
  5. Step 5: Solve for x
    x = 109,487,129.28/11,946.58
  6. Step 6: Final answer
    x = 9,164.73

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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.