Home / 13,629.60-20,448.32-4,865.13

Finding the Fourth Proportional to 13,629.60, 20,448.32 and 4,865.13

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Solution

The fourth proportional to 13,629.60, 20,448.32 and 4,865.13 is: 7,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.60 : 20,448.32 = 4,865.13 : x
  2. Step 2: Convert to fraction form
    13,629.60/20,448.32 = 4,865.13/x
  3. Step 3: Cross multiply
    13,629.60x = 20,448.32 × 4,865.13
  4. Step 4: Simplify right side
    13,629.60x = 99,483,710.76
  5. Step 5: Solve for x
    x = 99,483,710.76/13,629.60
  6. Step 6: Final answer
    x = 7,299.09

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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.