Home / 13,337.50-20,018.38-7,102.74

Finding the Fourth Proportional to 13,337.50, 20,018.38 and 7,102.74

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Solution

The fourth proportional to 13,337.50, 20,018.38 and 7,102.74 is: 10,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.50 : 20,018.38 = 7,102.74 : x
  2. Step 2: Convert to fraction form
    13,337.50/20,018.38 = 7,102.74/x
  3. Step 3: Cross multiply
    13,337.50x = 20,018.38 × 7,102.74
  4. Step 4: Simplify right side
    13,337.50x = 142,185,348.36
  5. Step 5: Solve for x
    x = 142,185,348.36/13,337.50
  6. Step 6: Final answer
    x = 10,660.57

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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.