Home / 13,671.47-20,508.42-3,810.93

Finding the Fourth Proportional to 13,671.47, 20,508.42 and 3,810.93

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Solution

The fourth proportional to 13,671.47, 20,508.42 and 3,810.93 is: 5,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.47 : 20,508.42 = 3,810.93 : x
  2. Step 2: Convert to fraction form
    13,671.47/20,508.42 = 3,810.93/x
  3. Step 3: Cross multiply
    13,671.47x = 20,508.42 × 3,810.93
  4. Step 4: Simplify right side
    13,671.47x = 78,156,153.03
  5. Step 5: Solve for x
    x = 78,156,153.03/13,671.47
  6. Step 6: Final answer
    x = 5,716.74

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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.