Home / 12,590.43-18,885.84-3,230.25

Finding the Fourth Proportional to 12,590.43, 18,885.84 and 3,230.25

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Solution

The fourth proportional to 12,590.43, 18,885.84 and 3,230.25 is: 4,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.43 : 18,885.84 = 3,230.25 : x
  2. Step 2: Convert to fraction form
    12,590.43/18,885.84 = 3,230.25/x
  3. Step 3: Cross multiply
    12,590.43x = 18,885.84 × 3,230.25
  4. Step 4: Simplify right side
    12,590.43x = 61,005,984.66
  5. Step 5: Solve for x
    x = 61,005,984.66/12,590.43
  6. Step 6: Final answer
    x = 4,845.43

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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.