Home / 18,688.04-25,791.68-10,622.90

Finding the Fourth Proportional to 18,688.04, 25,791.68 and 10,622.90

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Solution

The fourth proportional to 18,688.04, 25,791.68 and 10,622.90 is: 14,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.04 : 25,791.68 = 10,622.90 : x
  2. Step 2: Convert to fraction form
    18,688.04/25,791.68 = 10,622.90/x
  3. Step 3: Cross multiply
    18,688.04x = 25,791.68 × 10,622.90
  4. Step 4: Simplify right side
    18,688.04x = 273,982,560.04
  5. Step 5: Solve for x
    x = 273,982,560.04/18,688.04
  6. Step 6: Final answer
    x = 14,660.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.