Home / 13,003.74-17,939.27-8,285.09

Finding the Fourth Proportional to 13,003.74, 17,939.27 and 8,285.09

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Solution

The fourth proportional to 13,003.74, 17,939.27 and 8,285.09 is: 11,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.74 : 17,939.27 = 8,285.09 : x
  2. Step 2: Convert to fraction form
    13,003.74/17,939.27 = 8,285.09/x
  3. Step 3: Cross multiply
    13,003.74x = 17,939.27 × 8,285.09
  4. Step 4: Simplify right side
    13,003.74x = 148,628,397.50
  5. Step 5: Solve for x
    x = 148,628,397.50/13,003.74
  6. Step 6: Final answer
    x = 11,429.67

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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.