Home / 18,951.06-28,426.77-7,261.50

Finding the Fourth Proportional to 18,951.06, 28,426.77 and 7,261.50

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Solution

The fourth proportional to 18,951.06, 28,426.77 and 7,261.50 is: 10,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.06 : 28,426.77 = 7,261.50 : x
  2. Step 2: Convert to fraction form
    18,951.06/28,426.77 = 7,261.50/x
  3. Step 3: Cross multiply
    18,951.06x = 28,426.77 × 7,261.50
  4. Step 4: Simplify right side
    18,951.06x = 206,420,990.36
  5. Step 5: Solve for x
    x = 206,420,990.36/18,951.06
  6. Step 6: Final answer
    x = 10,892.32

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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.