Home / 12,355.38-18,536.13-3,590.37

Finding the Fourth Proportional to 12,355.38, 18,536.13 and 3,590.37

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Solution

The fourth proportional to 12,355.38, 18,536.13 and 3,590.37 is: 5,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.38 : 18,536.13 = 3,590.37 : x
  2. Step 2: Convert to fraction form
    12,355.38/18,536.13 = 3,590.37/x
  3. Step 3: Cross multiply
    12,355.38x = 18,536.13 × 3,590.37
  4. Step 4: Simplify right side
    12,355.38x = 66,551,565.07
  5. Step 5: Solve for x
    x = 66,551,565.07/12,355.38
  6. Step 6: Final answer
    x = 5,386.44

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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.