Home / 18,884.90-28,331.40-5,738.60

Finding the Fourth Proportional to 18,884.90, 28,331.40 and 5,738.60

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Solution

The fourth proportional to 18,884.90, 28,331.40 and 5,738.60 is: 8,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.90 : 28,331.40 = 5,738.60 : x
  2. Step 2: Convert to fraction form
    18,884.90/28,331.40 = 5,738.60/x
  3. Step 3: Cross multiply
    18,884.90x = 28,331.40 × 5,738.60
  4. Step 4: Simplify right side
    18,884.90x = 162,582,572.04
  5. Step 5: Solve for x
    x = 162,582,572.04/18,884.90
  6. Step 6: Final answer
    x = 8,609.13

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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.