Home / 12,577.82-18,869.15-4,259.18

Finding the Fourth Proportional to 12,577.82, 18,869.15 and 4,259.18

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Solution

The fourth proportional to 12,577.82, 18,869.15 and 4,259.18 is: 6,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.82 : 18,869.15 = 4,259.18 : x
  2. Step 2: Convert to fraction form
    12,577.82/18,869.15 = 4,259.18/x
  3. Step 3: Cross multiply
    12,577.82x = 18,869.15 × 4,259.18
  4. Step 4: Simplify right side
    12,577.82x = 80,367,164.12
  5. Step 5: Solve for x
    x = 80,367,164.12/12,577.82
  6. Step 6: Final answer
    x = 6,389.60

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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.