Home / 18,886.47-28,331.05-5,738.82

Finding the Fourth Proportional to 18,886.47, 28,331.05 and 5,738.82

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Solution

The fourth proportional to 18,886.47, 28,331.05 and 5,738.82 is: 8,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.47 : 28,331.05 = 5,738.82 : x
  2. Step 2: Convert to fraction form
    18,886.47/28,331.05 = 5,738.82/x
  3. Step 3: Cross multiply
    18,886.47x = 28,331.05 × 5,738.82
  4. Step 4: Simplify right side
    18,886.47x = 162,586,796.36
  5. Step 5: Solve for x
    x = 162,586,796.36/18,886.47
  6. Step 6: Final answer
    x = 8,608.64

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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.