Home / 13,750.57-20,626.69-3,890.60

Finding the Fourth Proportional to 13,750.57, 20,626.69 and 3,890.60

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Solution

The fourth proportional to 13,750.57, 20,626.69 and 3,890.60 is: 5,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.57 : 20,626.69 = 3,890.60 : x
  2. Step 2: Convert to fraction form
    13,750.57/20,626.69 = 3,890.60/x
  3. Step 3: Cross multiply
    13,750.57x = 20,626.69 × 3,890.60
  4. Step 4: Simplify right side
    13,750.57x = 80,250,200.11
  5. Step 5: Solve for x
    x = 80,250,200.11/13,750.57
  6. Step 6: Final answer
    x = 5,836.14

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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.