Home / 8,381.31-12,572.07-3,636.37

Finding the Fourth Proportional to 8,381.31, 12,572.07 and 3,636.37

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Solution

The fourth proportional to 8,381.31, 12,572.07 and 3,636.37 is: 5,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.31 : 12,572.07 = 3,636.37 : x
  2. Step 2: Convert to fraction form
    8,381.31/12,572.07 = 3,636.37/x
  3. Step 3: Cross multiply
    8,381.31x = 12,572.07 × 3,636.37
  4. Step 4: Simplify right side
    8,381.31x = 45,716,700.26
  5. Step 5: Solve for x
    x = 45,716,700.26/8,381.31
  6. Step 6: Final answer
    x = 5,454.60

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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.