Home / 12,590.96-18,888.40-3,825.12

Finding the Fourth Proportional to 12,590.96, 18,888.40 and 3,825.12

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Solution

The fourth proportional to 12,590.96, 18,888.40 and 3,825.12 is: 5,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.96 : 18,888.40 = 3,825.12 : x
  2. Step 2: Convert to fraction form
    12,590.96/18,888.40 = 3,825.12/x
  3. Step 3: Cross multiply
    12,590.96x = 18,888.40 × 3,825.12
  4. Step 4: Simplify right side
    12,590.96x = 72,250,396.61
  5. Step 5: Solve for x
    x = 72,250,396.61/12,590.96
  6. Step 6: Final answer
    x = 5,738.28

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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.