Home / 18,428.60-27,622.20-7,332.28

Finding the Fourth Proportional to 18,428.60, 27,622.20 and 7,332.28

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Solution

The fourth proportional to 18,428.60, 27,622.20 and 7,332.28 is: 10,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.60 : 27,622.20 = 7,332.28 : x
  2. Step 2: Convert to fraction form
    18,428.60/27,622.20 = 7,332.28/x
  3. Step 3: Cross multiply
    18,428.60x = 27,622.20 × 7,332.28
  4. Step 4: Simplify right side
    18,428.60x = 202,533,704.62
  5. Step 5: Solve for x
    x = 202,533,704.62/18,428.60
  6. Step 6: Final answer
    x = 10,990.18

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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.