Home / 12,207.72-16,854.81-9,370.02

Finding the Fourth Proportional to 12,207.72, 16,854.81 and 9,370.02

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Solution

The fourth proportional to 12,207.72, 16,854.81 and 9,370.02 is: 12,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.72 : 16,854.81 = 9,370.02 : x
  2. Step 2: Convert to fraction form
    12,207.72/16,854.81 = 9,370.02/x
  3. Step 3: Cross multiply
    12,207.72x = 16,854.81 × 9,370.02
  4. Step 4: Simplify right side
    12,207.72x = 157,929,906.80
  5. Step 5: Solve for x
    x = 157,929,906.80/12,207.72
  6. Step 6: Final answer
    x = 12,936.89

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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.