Home / 15,172.74-20,940.30-9,204.06

Finding the Fourth Proportional to 15,172.74, 20,940.30 and 9,204.06

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Solution

The fourth proportional to 15,172.74, 20,940.30 and 9,204.06 is: 12,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.74 : 20,940.30 = 9,204.06 : x
  2. Step 2: Convert to fraction form
    15,172.74/20,940.30 = 9,204.06/x
  3. Step 3: Cross multiply
    15,172.74x = 20,940.30 × 9,204.06
  4. Step 4: Simplify right side
    15,172.74x = 192,735,777.62
  5. Step 5: Solve for x
    x = 192,735,777.62/15,172.74
  6. Step 6: Final answer
    x = 12,702.77

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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.