Home / 18,794.40-28,190.16-4,943.04

Finding the Fourth Proportional to 18,794.40, 28,190.16 and 4,943.04

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Solution

The fourth proportional to 18,794.40, 28,190.16 and 4,943.04 is: 7,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.40 : 28,190.16 = 4,943.04 : x
  2. Step 2: Convert to fraction form
    18,794.40/28,190.16 = 4,943.04/x
  3. Step 3: Cross multiply
    18,794.40x = 28,190.16 × 4,943.04
  4. Step 4: Simplify right side
    18,794.40x = 139,345,088.49
  5. Step 5: Solve for x
    x = 139,345,088.49/18,794.40
  6. Step 6: Final answer
    x = 7,414.18

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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.