Home / 12,512.97-18,770.76-5,116.25

Finding the Fourth Proportional to 12,512.97, 18,770.76 and 5,116.25

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Solution

The fourth proportional to 12,512.97, 18,770.76 and 5,116.25 is: 7,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.97 : 18,770.76 = 5,116.25 : x
  2. Step 2: Convert to fraction form
    12,512.97/18,770.76 = 5,116.25/x
  3. Step 3: Cross multiply
    12,512.97x = 18,770.76 × 5,116.25
  4. Step 4: Simplify right side
    12,512.97x = 96,035,807.00
  5. Step 5: Solve for x
    x = 96,035,807.00/12,512.97
  6. Step 6: Final answer
    x = 7,674.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.