Home / 13,607.87-20,411.81-3,747.25

Finding the Fourth Proportional to 13,607.87, 20,411.81 and 3,747.25

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Solution

The fourth proportional to 13,607.87, 20,411.81 and 3,747.25 is: 5,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.87 : 20,411.81 = 3,747.25 : x
  2. Step 2: Convert to fraction form
    13,607.87/20,411.81 = 3,747.25/x
  3. Step 3: Cross multiply
    13,607.87x = 20,411.81 × 3,747.25
  4. Step 4: Simplify right side
    13,607.87x = 76,488,034.23
  5. Step 5: Solve for x
    x = 76,488,034.23/13,607.87
  6. Step 6: Final answer
    x = 5,620.87

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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.