Home / 13,772.16-20,660.97-5,005.94

Finding the Fourth Proportional to 13,772.16, 20,660.97 and 5,005.94

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Solution

The fourth proportional to 13,772.16, 20,660.97 and 5,005.94 is: 7,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.16 : 20,660.97 = 5,005.94 : x
  2. Step 2: Convert to fraction form
    13,772.16/20,660.97 = 5,005.94/x
  3. Step 3: Cross multiply
    13,772.16x = 20,660.97 × 5,005.94
  4. Step 4: Simplify right side
    13,772.16x = 103,427,491.63
  5. Step 5: Solve for x
    x = 103,427,491.63/13,772.16
  6. Step 6: Final answer
    x = 7,509.90

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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.