Home / 13,572.57-20,357.28-3,712.62

Finding the Fourth Proportional to 13,572.57, 20,357.28 and 3,712.62

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Solution

The fourth proportional to 13,572.57, 20,357.28 and 3,712.62 is: 5,568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.57 : 20,357.28 = 3,712.62 : x
  2. Step 2: Convert to fraction form
    13,572.57/20,357.28 = 3,712.62/x
  3. Step 3: Cross multiply
    13,572.57x = 20,357.28 × 3,712.62
  4. Step 4: Simplify right side
    13,572.57x = 75,578,844.87
  5. Step 5: Solve for x
    x = 75,578,844.87/13,572.57
  6. Step 6: Final answer
    x = 5,568.50

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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.