Home / 12,304.72-16,981.44-6,999.22

Finding the Fourth Proportional to 12,304.72, 16,981.44 and 6,999.22

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Solution

The fourth proportional to 12,304.72, 16,981.44 and 6,999.22 is: 9,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.72 : 16,981.44 = 6,999.22 : x
  2. Step 2: Convert to fraction form
    12,304.72/16,981.44 = 6,999.22/x
  3. Step 3: Cross multiply
    12,304.72x = 16,981.44 × 6,999.22
  4. Step 4: Simplify right side
    12,304.72x = 118,856,834.48
  5. Step 5: Solve for x
    x = 118,856,834.48/12,304.72
  6. Step 6: Final answer
    x = 9,659.45

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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.