Home / 12,577.09-18,865.68-4,257.19

Finding the Fourth Proportional to 12,577.09, 18,865.68 and 4,257.19

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Solution

The fourth proportional to 12,577.09, 18,865.68 and 4,257.19 is: 6,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.09 : 18,865.68 = 4,257.19 : x
  2. Step 2: Convert to fraction form
    12,577.09/18,865.68 = 4,257.19/x
  3. Step 3: Cross multiply
    12,577.09x = 18,865.68 × 4,257.19
  4. Step 4: Simplify right side
    12,577.09x = 80,314,784.24
  5. Step 5: Solve for x
    x = 80,314,784.24/12,577.09
  6. Step 6: Final answer
    x = 6,385.80

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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.