Home / 18,836.16-28,261.68-7,152.48

Finding the Fourth Proportional to 18,836.16, 28,261.68 and 7,152.48

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Solution

The fourth proportional to 18,836.16, 28,261.68 and 7,152.48 is: 10,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.16 : 28,261.68 = 7,152.48 : x
  2. Step 2: Convert to fraction form
    18,836.16/28,261.68 = 7,152.48/x
  3. Step 3: Cross multiply
    18,836.16x = 28,261.68 × 7,152.48
  4. Step 4: Simplify right side
    18,836.16x = 202,141,100.97
  5. Step 5: Solve for x
    x = 202,141,100.97/18,836.16
  6. Step 6: Final answer
    x = 10,731.55

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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.