Home / 13,645.24-20,469.10-4,880.20

Finding the Fourth Proportional to 13,645.24, 20,469.10 and 4,880.20

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Solution

The fourth proportional to 13,645.24, 20,469.10 and 4,880.20 is: 7,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.24 : 20,469.10 = 4,880.20 : x
  2. Step 2: Convert to fraction form
    13,645.24/20,469.10 = 4,880.20/x
  3. Step 3: Cross multiply
    13,645.24x = 20,469.10 × 4,880.20
  4. Step 4: Simplify right side
    13,645.24x = 99,893,301.82
  5. Step 5: Solve for x
    x = 99,893,301.82/13,645.24
  6. Step 6: Final answer
    x = 7,320.74

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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.