Home / 13,480.29-20,213.01-5,580.63

Finding the Fourth Proportional to 13,480.29, 20,213.01 and 5,580.63

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Solution

The fourth proportional to 13,480.29, 20,213.01 and 5,580.63 is: 8,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.29 : 20,213.01 = 5,580.63 : x
  2. Step 2: Convert to fraction form
    13,480.29/20,213.01 = 5,580.63/x
  3. Step 3: Cross multiply
    13,480.29x = 20,213.01 × 5,580.63
  4. Step 4: Simplify right side
    13,480.29x = 112,801,330.00
  5. Step 5: Solve for x
    x = 112,801,330.00/13,480.29
  6. Step 6: Final answer
    x = 8,367.87

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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.