Home / 13,671.54-20,506.68-3,810.60

Finding the Fourth Proportional to 13,671.54, 20,506.68 and 3,810.60

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Solution

The fourth proportional to 13,671.54, 20,506.68 and 3,810.60 is: 5,715.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.54 : 20,506.68 = 3,810.60 : x
  2. Step 2: Convert to fraction form
    13,671.54/20,506.68 = 3,810.60/x
  3. Step 3: Cross multiply
    13,671.54x = 20,506.68 × 3,810.60
  4. Step 4: Simplify right side
    13,671.54x = 78,142,754.81
  5. Step 5: Solve for x
    x = 78,142,754.81/13,671.54
  6. Step 6: Final answer
    x = 5,715.72

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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.