Home / 11,946.72-16,485.71-6,641.40

Finding the Fourth Proportional to 11,946.72, 16,485.71 and 6,641.40

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Solution

The fourth proportional to 11,946.72, 16,485.71 and 6,641.40 is: 9,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.72 : 16,485.71 = 6,641.40 : x
  2. Step 2: Convert to fraction form
    11,946.72/16,485.71 = 6,641.40/x
  3. Step 3: Cross multiply
    11,946.72x = 16,485.71 × 6,641.40
  4. Step 4: Simplify right side
    11,946.72x = 109,488,161.19
  5. Step 5: Solve for x
    x = 109,488,161.19/11,946.72
  6. Step 6: Final answer
    x = 9,164.70

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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.