Home / 13,629.40-20,444.10-7,057.60

Finding the Fourth Proportional to 13,629.40, 20,444.10 and 7,057.60

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Solution

The fourth proportional to 13,629.40, 20,444.10 and 7,057.60 is: 10,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.40 : 20,444.10 = 7,057.60 : x
  2. Step 2: Convert to fraction form
    13,629.40/20,444.10 = 7,057.60/x
  3. Step 3: Cross multiply
    13,629.40x = 20,444.10 × 7,057.60
  4. Step 4: Simplify right side
    13,629.40x = 144,286,280.16
  5. Step 5: Solve for x
    x = 144,286,280.16/13,629.40
  6. Step 6: Final answer
    x = 10,586.40

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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.