Home / 13,777.97-20,660.47-9,622.67

Finding the Fourth Proportional to 13,777.97, 20,660.47 and 9,622.67

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Solution

The fourth proportional to 13,777.97, 20,660.47 and 9,622.67 is: 14,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.97 : 20,660.47 = 9,622.67 : x
  2. Step 2: Convert to fraction form
    13,777.97/20,660.47 = 9,622.67/x
  3. Step 3: Cross multiply
    13,777.97x = 20,660.47 × 9,622.67
  4. Step 4: Simplify right side
    13,777.97x = 198,808,833.20
  5. Step 5: Solve for x
    x = 198,808,833.20/13,777.97
  6. Step 6: Final answer
    x = 14,429.47

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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.