Home / 12,577.77-18,868.61-3,810.60

Finding the Fourth Proportional to 12,577.77, 18,868.61 and 3,810.60

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Solution

The fourth proportional to 12,577.77, 18,868.61 and 3,810.60 is: 5,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.77 : 18,868.61 = 3,810.60 : x
  2. Step 2: Convert to fraction form
    12,577.77/18,868.61 = 3,810.60/x
  3. Step 3: Cross multiply
    12,577.77x = 18,868.61 × 3,810.60
  4. Step 4: Simplify right side
    12,577.77x = 71,900,725.27
  5. Step 5: Solve for x
    x = 71,900,725.27/12,577.77
  6. Step 6: Final answer
    x = 5,716.49

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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.