Home / 12,355.74-18,536.65-3,590.73

Finding the Fourth Proportional to 12,355.74, 18,536.65 and 3,590.73

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Solution

The fourth proportional to 12,355.74, 18,536.65 and 3,590.73 is: 5,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.74 : 18,536.65 = 3,590.73 : x
  2. Step 2: Convert to fraction form
    12,355.74/18,536.65 = 3,590.73/x
  3. Step 3: Cross multiply
    12,355.74x = 18,536.65 × 3,590.73
  4. Step 4: Simplify right side
    12,355.74x = 66,560,096.28
  5. Step 5: Solve for x
    x = 66,560,096.28/12,355.74
  6. Step 6: Final answer
    x = 5,386.98

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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.