Home / 12,586.60-18,878.77-4,266.42

Finding the Fourth Proportional to 12,586.60, 18,878.77 and 4,266.42

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Solution

The fourth proportional to 12,586.60, 18,878.77 and 4,266.42 is: 6,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.60 : 18,878.77 = 4,266.42 : x
  2. Step 2: Convert to fraction form
    12,586.60/18,878.77 = 4,266.42/x
  3. Step 3: Cross multiply
    12,586.60x = 18,878.77 × 4,266.42
  4. Step 4: Simplify right side
    12,586.60x = 80,544,761.90
  5. Step 5: Solve for x
    x = 80,544,761.90/12,586.60
  6. Step 6: Final answer
    x = 6,399.25

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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.